January 2023 - Alsa-devel - mailman.alsa-project.org

[PATCH v4 00/13] ASoC: mediatek: Add support for MT8188 SoC
by Trevor Wu 03 Jan '23

03 Jan '23

This series of patches adds support for Mediatek AFE of MT8188 SoC. Patches are based on broonie tree "for-next" branch. Changes since v3: - replace apll_ck with apll to sync with the relationship in CCF - add mtk-soundcard-driver.c to support codec parsing - drop mclk-always-on-rates support in mt8188-dai-etdm.c - refine dt-binding files based on reviewer's suggestions Changes since v2: - drop CLK_IGNORE_UNUSED flag - include bitfield.h to reslove the issue reported by kernel test robot - rename mt8188-afe-pcm.yaml to mt8188-afe.yaml - refine dt-binding files based on reviewer's suggestions Changes since v1: - remove bus protection functions in case of unmerged dependency problem - replace some bit operation macro with FIELD_PREP - simplify register control by regmap_set_bits and regmap_clear_bits - fix dt-binding errors - rename compatible string for recognition Trevor Wu (13): ASoC: mediatek: common: add SMC ops and SMC CMD ASoC: mediatek: mt8188: add common header ASoC: mediatek: mt8188: support audsys clock ASoC: mediatek: mt8188: support adda in platform driver ASoC: mediatek: mt8188: support etdm in platform driver ASoC: mediatek: mt8188: support pcmif in platform driver ASoC: mediatek: mt8188: support audio clock control ASoC: mediatek: mt8188: add platform driver ASoC: mediatek: mt8188: add control for timing select dt-bindings: mediatek: mt8188: add audio afe document ASoC: mediatek: common: add soundcard driver common code ASoC: mediatek: mt8188: add machine driver with mt6359 dt-bindings: mediatek: mt8188: add mt8188-mt6359 document .../bindings/sound/mediatek,mt8188-afe.yaml | 208 + .../sound/mediatek,mt8188-mt6359.yaml | 93 + sound/soc/mediatek/Kconfig | 23 + sound/soc/mediatek/Makefile | 1 + sound/soc/mediatek/common/Makefile | 2 +- sound/soc/mediatek/common/mtk-base-afe.h | 19 + .../mediatek/common/mtk-soundcard-driver.c | 79 + .../mediatek/common/mtk-soundcard-driver.h | 14 + sound/soc/mediatek/mt8188/Makefile | 15 + sound/soc/mediatek/mt8188/mt8188-afe-clk.c | 658 ++++ sound/soc/mediatek/mt8188/mt8188-afe-clk.h | 115 + sound/soc/mediatek/mt8188/mt8188-afe-common.h | 151 + sound/soc/mediatek/mt8188/mt8188-afe-pcm.c | 3359 +++++++++++++++++ sound/soc/mediatek/mt8188/mt8188-audsys-clk.c | 205 + sound/soc/mediatek/mt8188/mt8188-audsys-clk.h | 15 + .../soc/mediatek/mt8188/mt8188-audsys-clkid.h | 83 + sound/soc/mediatek/mt8188/mt8188-dai-adda.c | 632 ++++ sound/soc/mediatek/mt8188/mt8188-dai-etdm.c | 2591 +++++++++++++ sound/soc/mediatek/mt8188/mt8188-dai-pcm.c | 367 ++ sound/soc/mediatek/mt8188/mt8188-mt6359.c | 785 ++++ sound/soc/mediatek/mt8188/mt8188-reg.h | 3180 ++++++++++++++++ 21 files changed, 12594 insertions(+), 1 deletion(-) create mode 100644 Documentation/devicetree/bindings/sound/mediatek,mt8188-afe.yaml create mode 100644 Documentation/devicetree/bindings/sound/mediatek,mt8188-mt6359.yaml create mode 100644 sound/soc/mediatek/common/mtk-soundcard-driver.c create mode 100644 sound/soc/mediatek/common/mtk-soundcard-driver.h create mode 100644 sound/soc/mediatek/mt8188/Makefile create mode 100644 sound/soc/mediatek/mt8188/mt8188-afe-clk.c create mode 100644 sound/soc/mediatek/mt8188/mt8188-afe-clk.h create mode 100644 sound/soc/mediatek/mt8188/mt8188-afe-common.h create mode 100644 sound/soc/mediatek/mt8188/mt8188-afe-pcm.c create mode 100644 sound/soc/mediatek/mt8188/mt8188-audsys-clk.c create mode 100644 sound/soc/mediatek/mt8188/mt8188-audsys-clk.h create mode 100644 sound/soc/mediatek/mt8188/mt8188-audsys-clkid.h create mode 100644 sound/soc/mediatek/mt8188/mt8188-dai-adda.c create mode 100644 sound/soc/mediatek/mt8188/mt8188-dai-etdm.c create mode 100644 sound/soc/mediatek/mt8188/mt8188-dai-pcm.c create mode 100644 sound/soc/mediatek/mt8188/mt8188-mt6359.c create mode 100644 sound/soc/mediatek/mt8188/mt8188-reg.h -- 2.18.0

4 19

[PATCH 0/6] ASoC: samsung: fsd: audio support for FSD SoC
by Padmanabhan Rajanbabu 03 Jan '23

03 Jan '23

The intention of this patch series is to enable audio support on FSD SoC. The following features are added in samsung I2S interface: 1. Add TDM support on samsung I2S interface 2. Allow sound card to directly configure prescaler divider instead of calculating it from frame clock Also the sound card support for FSD SoC is added, which utilizes samsung I2S interface as CPU DAI. This patch is dependent on fsd-pinctrl fixes patch series [1] [1]: https://lkml.org/lkml/2022/10/13/257 Padmanabhan Rajanbabu (6): ASoC: samsung: i2s: TDM Support for CPU DAI driver ASoC: samsung: i2s: configure PSR from sound card dt-bindings: sound: Add sound card bindings for Tesla FSD ASoC: samsung: fsd: Add FSD soundcard driver arm64: dts: fsd: Add I2S DAI node for Tesla FSD arm64: dts: fsd: Add sound card node for Tesla FSD .../bindings/sound/tesla,fsd-card.yaml | 158 ++++++++ arch/arm64/boot/dts/tesla/fsd-evb.dts | 57 +++ arch/arm64/boot/dts/tesla/fsd-pinctrl.dtsi | 14 + arch/arm64/boot/dts/tesla/fsd.dtsi | 41 ++ sound/soc/samsung/Kconfig | 12 + sound/soc/samsung/Makefile | 2 + sound/soc/samsung/fsd-card.c | 349 ++++++++++++++++++ sound/soc/samsung/i2s-regs.h | 17 + sound/soc/samsung/i2s.c | 120 +++++- sound/soc/samsung/i2s.h | 1 + 10 files changed, 766 insertions(+), 5 deletions(-) create mode 100644 Documentation/devicetree/bindings/sound/tesla,fsd-card.yaml create mode 100644 sound/soc/samsung/fsd-card.c -- 2.17.1

5 32

[PATCH v4 0/7] kselftest/alsa: pcm-test improvements
by Mark Brown 02 Jan '23

02 Jan '23

This series provides a bunch of quick updates which should make the coverage from pcm-test a bit more useful, it adds some support for skipping tests when the hardware/driver is unable to support the requested configuration, support for providing user visible descriptions and then expands the set of cases we cover to include more sample rates and channel counts. This should exercise switching between 8kHz and 44.1kHz based rates and ensure that clocking doesn't get confused by non-stereo channel counts, both of which are I expect common real world errors, at least for embedded cards. v4: - Rebase onto v6.2-rc1. v3: - "Rebase" onto Takashi's current tree (with a revert). - Include Jaroslav's changes to specify all tests in the configuration file parsing. - Add a new "description" field to the configuration instead of trying to name the tests. - Always run both default and per-system tests, logging our success at setting the per-system configurations as a separate test since they shouldn't fail. v2: - Rebase onto Takashi's current tree. - Tweak the buffer sizes for the newly added cases, don't be quite so ambitious in how big a buffer we request for 96kHz and don't go quite so small for 8kHz since some devices start hitting lower limits on period size and struggle to deliver accurate timing. To: Takashi Iwai <tiwai(a)suse.com> To: Jaroslav Kysela <perex(a)perex.cz> To: Shuah Khan <shuah(a)kernel.org> Cc: alsa-devel(a)alsa-project.org Cc: linux-kselftest(a)vger.kernel.org Cc: linux-kernel(a)vger.kernel.org Signed-off-by: Mark Brown <broonie(a)kernel.org> --- Jaroslav Kysela (1): kselftest/alsa: pcm - move more configuration to configuration files Mark Brown (6): kselftest/alsa: pcm - Drop recent coverage improvement changes kselftest/alsa: pcm - Always run the default set of tests kselftest/alsa: pcm - skip tests when we fail to set params kselftest/alsa: pcm - Support optional description for tests kselftest/alsa: pcm - Provide descriptions for the default tests kselftest/alsa: pcm - Add more coverage by default tools/testing/selftests/alsa/Makefile | 2 +- tools/testing/selftests/alsa/alsa-local.h | 3 + tools/testing/selftests/alsa/conf.c | 26 ++- .../alsa/conf.d/Lenovo_ThinkPad_P1_Gen2.conf | 43 +++-- tools/testing/selftests/alsa/pcm-test.c | 205 ++++++++++++++------- tools/testing/selftests/alsa/pcm-test.conf | 63 +++++++ 6 files changed, 250 insertions(+), 92 deletions(-) --- base-commit: 1b929c02afd37871d5afb9d498426f83432e71c2 change-id: 20221208-alsa-pcm-test-hacks-f6c1aa76bd2c Best regards, -- Mark Brown <broonie(a)kernel.org>

2 8

Regression playing 24bit/96kHz audio on USB audio interface between 5.10.94 and 5.15.21
by Ruud van Asseldonk 02 Jan '23

02 Jan '23

Hi, I have a program that configures a Behringer UMC404HD 192k USB audio interface for playback as follows (pseudocode): snd_pcm_hw_params_set_channels(pcm, hwp, 2); snd_pcm_hw_params_set_format(pcm, hwp, SND_PCM_FORMAT_S24_3LE); snd_pcm_hw_params_set_access(pcm, hwp, SND_PCM_ACCESS_MMAP_INTERLEAVED); snd_pcm_hw_params_set_rate(pcm, hwp, val=96000, dir=0); snd_pcm_hw_params_set_period_size_near(pcm, hwp, val=513, dir=0); // If I confirm at this point with snd_pcm_hw_params_get_period_size, // I get back 513. snd_pcm_hw_params_set_buffer_size_near(pcm, hwp, val=2052); snd_pcm_hw_params(pcm, hwp); // If I confirm with snd_pcm_hw_params_get_buffer_size, // I get back 2052. On Linux 5.10.94 (specifically Arch Linux ARM package linux-rpi-5.10.94-1), this succeeds, and I can play back audio just fine. On 5.15.21 (specifically linux-rpi-5.15.21-3), all the calls succeed apart from the last one, which returns EINVAL. (My actual program is written in Rust and uses a Rust wrapper library for libasound, https://docs.rs/alsa/0.6.0/alsa/, but the calls should be the ones listed.) I confirmed with snd_pcm_hw_params_test_format that the S24_3LE format is supported. On both kernels it is successful. I confirmed with snd_pcm_hw_params_test_rate that 96 kHz is supported. On both kernels it is successful. There are differences though. When I query these: snd_pcm_hw_params_get_period_size_min snd_pcm_hw_params_get_period_size_max snd_pcm_hw_params_get_buffer_size_min snd_pcm_hw_params_get_buffer_size_max Then on 5.10.94 (the good version), I get: period size min/max: 12/32768, buffer size min/max: 24/65536 But on 5.15.21 (the bad version), I get: period size min/max: 13/71332, buffer size min/max: 26/142663 Also, after I set the period size to 513, if I then query the buffer size min/max, on 5.10.94 I get: buffer size min/max: 1026/65536 But on 5.15.21 I get: buffer size min/max: 1027/142663 In lsmod, snd_usb_audio shows up, and from lsusb -v, the UMC404HD appears to be a standard USB audio interface. The lsusb output is identical on both kernels. Please let me know if there is anything I can do to help further diagnose the issue, or if I should report this elsewhere. Kind regards, Ruud van Asseldonk

5 10

[PATCH] ASoC: qcom: lpass-cpu: Fix fallback SD line index handling
by Brian Norris 02 Jan '23

02 Jan '23

These indices should reference the ID placed within the dai_driver array, not the indices of the array itself. This fixes commit 4ff028f6c108 ("ASoC: qcom: lpass-cpu: Make I2S SD lines configurable"), which among others, broke IPQ8064 audio (sound/soc/qcom/lpass-ipq806x.c) because it uses ID 4 but we'd stop initializing the mi2s_playback_sd_mode and mi2s_capture_sd_mode arrays at ID 0. Fixes: 4ff028f6c108 ("ASoC: qcom: lpass-cpu: Make I2S SD lines configurable") Cc: <stable(a)vger.kernel.org> Signed-off-by: Brian Norris <computersforpeace(a)gmail.com> --- sound/soc/qcom/lpass-cpu.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/sound/soc/qcom/lpass-cpu.c b/sound/soc/qcom/lpass-cpu.c index 54353842dc07..dbdaaa85ce48 100644 --- a/sound/soc/qcom/lpass-cpu.c +++ b/sound/soc/qcom/lpass-cpu.c @@ -1037,10 +1037,11 @@ static void of_lpass_cpu_parse_dai_data(struct device *dev, struct lpass_data *data) { struct device_node *node; - int ret, id; + int ret, i, id; /* Allow all channels by default for backwards compatibility */ - for (id = 0; id < data->variant->num_dai; id++) { + for (i = 0; i < data->variant->num_dai; i++) { + id = data->variant->dai_driver[i].id; data->mi2s_playback_sd_mode[id] = LPAIF_I2SCTL_MODE_8CH; data->mi2s_capture_sd_mode[id] = LPAIF_I2SCTL_MODE_8CH; } -- 2.39.0

3 2

[syzbot] [ntfs3?] INFO: task hung in do_user_addr_fault (3)
by syzbot 01 Jan '23

01 Jan '23

Hello, syzbot found the following issue on: HEAD commit: 1b929c02afd3 Linux 6.2-rc1 git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=153167f2480000 kernel config: https://syzkaller.appspot.com/x/.config?x=555d27e379d75ff1 dashboard link: https://syzkaller.appspot.com/bug?extid=bed15dbf10294aa4f2ae compiler: Debian clang version 13.0.1-++20220126092033+75e33f71c2da-1~exp1~20220126212112.63, GNU ld (GNU Binutils for Debian) 2.35.2 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=17be0848480000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=169a866c480000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/2824225be62b/disk-1b929c02.raw… vmlinux: https://storage.googleapis.com/syzbot-assets/ff607a05be90/vmlinux-1b929c02.… kernel image: https://storage.googleapis.com/syzbot-assets/c0b523d63d64/bzImage-1b929c02.… mounted in repro: https://storage.googleapis.com/syzbot-assets/34cfdd07fe62/mount_3.gz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+bed15dbf10294aa4f2ae(a)syzkaller.appspotmail.com INFO: task syz-executor394:5211 blocked for more than 143 seconds. Not tainted 6.2.0-rc1-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor394 state:D stack:25528 pid:5211 ppid:5123 flags:0x00004004 Call Trace: <TASK> context_switch kernel/sched/core.c:5244 [inline] __schedule+0x9d1/0xe40 kernel/sched/core.c:6555 schedule+0xcb/0x190 kernel/sched/core.c:6631 rwsem_down_read_slowpath+0x5fe/0x950 kernel/locking/rwsem.c:1095 __down_read_common+0x54/0x2a0 kernel/locking/rwsem.c:1260 mmap_read_lock+0x17/0x50 include/linux/mmap_lock.h:117 do_user_addr_fault+0x4b7/0xcb0 arch/x86/mm/fault.c:1379 handle_page_fault arch/x86/mm/fault.c:1519 [inline] exc_page_fault+0x7a/0x120 arch/x86/mm/fault.c:1575 asm_exc_page_fault+0x22/0x30 arch/x86/include/asm/idtentry.h:570 RIP: 0033:0x7faec5f30aa8 RSP: 002b:00007ffc6b200128 EFLAGS: 00010206 RAX: 00007faec5f82c10 RBX: 00007faec5f811d8 RCX: 0000000000000001 RDX: 00007faec5e9df50 RSI: 0000000000000000 RDI: 00007faec5f82c10 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000010 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000001 R14: 00007faec5f88420 R15: 0000000000000001 </TASK> INFO: task syz-executor394:5212 blocked for more than 143 seconds. Not tainted 6.2.0-rc1-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor394 state:D stack:26872 pid:5212 ppid:5123 flags:0x00004004 Call Trace: <TASK> context_switch kernel/sched/core.c:5244 [inline] __schedule+0x9d1/0xe40 kernel/sched/core.c:6555 schedule+0xcb/0x190 kernel/sched/core.c:6631 rwsem_down_read_slowpath+0x5fe/0x950 kernel/locking/rwsem.c:1095 __down_read_common+0x54/0x2a0 kernel/locking/rwsem.c:1260 mmap_read_lock+0x17/0x50 include/linux/mmap_lock.h:117 do_user_addr_fault+0x4b7/0xcb0 arch/x86/mm/fault.c:1379 handle_page_fault arch/x86/mm/fault.c:1519 [inline] exc_page_fault+0x7a/0x120 arch/x86/mm/fault.c:1575 asm_exc_page_fault+0x22/0x30 arch/x86/include/asm/idtentry.h:570 RIP: 0010:copy_user_enhanced_fast_string+0xa/0x40 arch/x86/lib/copy_user_64.S:166 Code: ff c9 75 f2 89 d1 c1 e9 03 83 e2 07 f3 48 a5 89 d1 f3 a4 31 c0 0f 01 ca c3 8d 0c ca 89 ca eb 20 0f 01 cb 83 fa 40 72 38 89 d1 <f3> a4 31 c0 0f 01 ca c3 89 ca eb 0a 66 2e 0f 1f 84 00 00 00 00 00 RSP: 0018:ffffc900043bfa38 EFLAGS: 00050206 RAX: ffffffff84434c01 RBX: 00007fffffffe000 RCX: 0000000000001000 RDX: 0000000000001000 RSI: 000000002042f000 RDI: ffff8880736be000 RBP: ffff888144ecb010 R08: dffffc0000000000 R09: ffffed100e6d7e00 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000001000 R13: 0000000000001000 R14: ffff8880736be000 R15: 000000002042f000 copy_user_generic arch/x86/include/asm/uaccess_64.h:37 [inline] raw_copy_from_user arch/x86/include/asm/uaccess_64.h:52 [inline] _copy_from_user+0xf0/0x160 lib/usercopy.c:16 copy_from_user include/linux/uaccess.h:161 [inline] snd_rawmidi_kernel_write1+0x3bd/0x660 sound/core/rawmidi.c:1547 snd_rawmidi_write+0x615/0xbe0 sound/core/rawmidi.c:1616 vfs_write+0x2e5/0xbb0 fs/read_write.c:582 ksys_write+0x19b/0x2c0 fs/read_write.c:637 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7faec5edf939 RSP: 002b:00007faec5e8b2f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007faec5f837e0 RCX: 00007faec5edf939 RDX: 00000000fffffd2c RSI: 0000000020000000 RDI: 0000000000000004 RBP: 00007faec5f50808 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 6c75727363616f6e R13: 6573726168636f69 R14: 0030656c69662f2e R15: 00007faec5f837e8 </TASK> INFO: task syz-executor394:5214 blocked for more than 144 seconds. Not tainted 6.2.0-rc1-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor394 state:D stack:23504 pid:5214 ppid:5123 flags:0x00004004 Call Trace: <TASK> context_switch kernel/sched/core.c:5244 [inline] __schedule+0x9d1/0xe40 kernel/sched/core.c:6555 schedule+0xcb/0x190 kernel/sched/core.c:6631 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6690 __mutex_lock_common+0xecf/0x26c0 kernel/locking/mutex.c:679 __mutex_lock kernel/locking/mutex.c:747 [inline] mutex_lock_nested+0x17/0x20 kernel/locking/mutex.c:799 ni_lock fs/ntfs3/ntfs_fs.h:1122 [inline] attr_data_get_block+0x4a6/0x2e40 fs/ntfs3/attrib.c:919 ntfs_get_block_vbo+0x374/0xd20 fs/ntfs3/inode.c:573 do_mpage_readpage+0x98b/0x1bb0 fs/mpage.c:208 mpage_read_folio+0x103/0x1d0 fs/mpage.c:379 filemap_read_folio+0x1ba/0x7f0 mm/filemap.c:2426 filemap_update_page+0x3ca/0x550 mm/filemap.c:2511 filemap_get_pages+0x8d8/0x1110 mm/filemap.c:2624 filemap_read+0x3e7/0xee0 mm/filemap.c:2694 call_read_iter include/linux/fs.h:2180 [inline] generic_file_splice_read+0x24e/0x650 fs/splice.c:309 do_splice_to fs/splice.c:793 [inline] splice_direct_to_actor+0x41b/0xc00 fs/splice.c:865 do_splice_direct+0x2a0/0x3f0 fs/splice.c:974 do_sendfile+0x641/0xfd0 fs/read_write.c:1255 __do_sys_sendfile64 fs/read_write.c:1323 [inline] __se_sys_sendfile64+0x178/0x1e0 fs/read_write.c:1309 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7faec5edf939 RSP: 002b:00007faec5e6a2f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 00007faec5f837f0 RCX: 00007faec5edf939 RDX: 0000000000000000 RSI: 0000000000000007 RDI: 0000000000000006 RBP: 00007faec5f50808 R08: 0000000000000000 R09: 0000000000000000 R10: 0001000000201005 R11: 0000000000000246 R12: 6c75727363616f6e R13: 6573726168636f69 R14: 0030656c69662f2e R15: 00007faec5f837f8 </TASK> INFO: task syz-executor394:5221 blocked for more than 145 seconds. Not tainted 6.2.0-rc1-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor394 state:D stack:25448 pid:5221 ppid:5123 flags:0x00004004 Call Trace: <TASK> context_switch kernel/sched/core.c:5244 [inline] __schedule+0x9d1/0xe40 kernel/sched/core.c:6555 schedule+0xcb/0x190 kernel/sched/core.c:6631 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6690 __mutex_lock_common+0xecf/0x26c0 kernel/locking/mutex.c:679 __mutex_lock kernel/locking/mutex.c:747 [inline] mutex_lock_nested+0x17/0x20 kernel/locking/mutex.c:799 ni_lock fs/ntfs3/ntfs_fs.h:1122 [inline] attr_data_get_block+0x4a6/0x2e40 fs/ntfs3/attrib.c:919 ntfs_file_mmap+0x4cc/0x780 fs/ntfs3/file.c:296 call_mmap include/linux/fs.h:2191 [inline] mmap_region+0x1022/0x1e60 mm/mmap.c:2621 do_mmap+0x8d9/0xf30 mm/mmap.c:1411 vm_mmap_pgoff+0x1e5/0x2f0 mm/util.c:520 ksys_mmap_pgoff+0x48c/0x6d0 mm/mmap.c:1457 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7faec5edf939 RSP: 002b:00007faebdc492e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 RAX: ffffffffffffffda RBX: 00007faec5f83800 RCX: 00007faec5edf939 RDX: 0000000000800006 RSI: 0000000002047ffb RDI: 0000000020001000 RBP: 00007faec5f50808 R08: 0000000000000008 R09: 0000000000000000 R10: 0000000000000011 R11: 0000000000000246 R12: 6c75727363616f6e R13: 6573726168636f69 R14: 0030656c69662f2e R15: 00007faec5f83808 </TASK> INFO: task syz-executor394:5222 blocked for more than 145 seconds. Not tainted 6.2.0-rc1-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor394 state:D stack:26216 pid:5222 ppid:5123 flags:0x00004004 Call Trace: <TASK> context_switch kernel/sched/core.c:5244 [inline] __schedule+0x9d1/0xe40 kernel/sched/core.c:6555 schedule+0xcb/0x190 kernel/sched/core.c:6631 io_schedule+0x83/0x100 kernel/sched/core.c:8811 folio_wait_bit_common+0x8ca/0x1390 mm/filemap.c:1297 folio_lock include/linux/pagemap.h:938 [inline] truncate_inode_pages_range+0xc8d/0x1650 mm/truncate.c:421 truncate_inode_pages mm/truncate.c:448 [inline] truncate_pagecache mm/truncate.c:743 [inline] truncate_setsize+0xcb/0xf0 mm/truncate.c:768 ntfs_truncate fs/ntfs3/file.c:395 [inline] ntfs3_setattr+0x5a5/0xca0 fs/ntfs3/file.c:696 notify_change+0xe50/0x1100 fs/attr.c:482 do_truncate+0x219/0x300 fs/open.c:65 handle_truncate fs/namei.c:3216 [inline] do_open fs/namei.c:3561 [inline] path_openat+0x273d/0x2de0 fs/namei.c:3714 do_filp_open+0x275/0x500 fs/namei.c:3741 do_sys_openat2+0x13b/0x500 fs/open.c:1310 do_sys_open fs/open.c:1326 [inline] __do_sys_creat fs/open.c:1402 [inline] __se_sys_creat fs/open.c:1396 [inline] __x64_sys_creat+0x11f/0x160 fs/open.c:1396 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7faec5edf939 RSP: 002b:00007faebdc282f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000055 RAX: ffffffffffffffda RBX: 00007faec5f83810 RCX: 00007faec5edf939 RDX: 00007faec5edf939 RSI: 0000000000000000 RDI: 0000000020000000 RBP: 00007faec5f50808 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 6c75727363616f6e R13: 6573726168636f69 R14: 0030656c69662f2e R15: 00007faec5f83818 </TASK> INFO: task syz-executor394:6046 blocked for more than 146 seconds. Not tainted 6.2.0-rc1-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor394 state:D stack:26328 pid:6046 ppid:5125 flags:0x00004004 Call Trace: <TASK> context_switch kernel/sched/core.c:5244 [inline] __schedule+0x9d1/0xe40 kernel/sched/core.c:6555 schedule+0xcb/0x190 kernel/sched/core.c:6631 rwsem_down_read_slowpath+0x5fe/0x950 kernel/locking/rwsem.c:1095 __down_read_common+0x54/0x2a0 kernel/locking/rwsem.c:1260 mmap_read_lock+0x17/0x50 include/linux/mmap_lock.h:117 do_user_addr_fault+0x4b7/0xcb0 arch/x86/mm/fault.c:1379 handle_page_fault arch/x86/mm/fault.c:1519 [inline] exc_page_fault+0x7a/0x120 arch/x86/mm/fault.c:1575 asm_exc_page_fault+0x22/0x30 arch/x86/include/asm/idtentry.h:570 RIP: 0033:0x7faec5f30aa8 RSP: 002b:00007ffc6b200128 EFLAGS: 00010206 RAX: 00007faec5f82c10 RBX: 00007faec5f811d8 RCX: 0000000000000001 RDX: 00007faec5e9df50 RSI: 0000000000000000 RDI: 00007faec5f82c10 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000010 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000001 R14: 00007faec5f88420 R15: 0000000000000001 </TASK> INFO: task syz-executor394:6047 blocked for more than 147 seconds. Not tainted 6.2.0-rc1-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor394 state:D stack:25656 pid:6047 ppid:5125 flags:0x00004004 Call Trace: <TASK> context_switch kernel/sched/core.c:5244 [inline] __schedule+0x9d1/0xe40 kernel/sched/core.c:6555 schedule+0xcb/0x190 kernel/sched/core.c:6631 rwsem_down_read_slowpath+0x5fe/0x950 kernel/locking/rwsem.c:1095 __down_read_common+0x54/0x2a0 kernel/locking/rwsem.c:1260 mmap_read_lock+0x17/0x50 include/linux/mmap_lock.h:117 do_user_addr_fault+0x4b7/0xcb0 arch/x86/mm/fault.c:1379 handle_page_fault arch/x86/mm/fault.c:1519 [inline] exc_page_fault+0x7a/0x120 arch/x86/mm/fault.c:1575 asm_exc_page_fault+0x22/0x30 arch/x86/include/asm/idtentry.h:570 RIP: 0010:copy_user_enhanced_fast_string+0xa/0x40 arch/x86/lib/copy_user_64.S:166 Code: ff c9 75 f2 89 d1 c1 e9 03 83 e2 07 f3 48 a5 89 d1 f3 a4 31 c0 0f 01 ca c3 8d 0c ca 89 ca eb 20 0f 01 cb 83 fa 40 72 38 89 d1 <f3> a4 31 c0 0f 01 ca c3 89 ca eb 0a 66 2e 0f 1f 84 00 00 00 00 00 RSP: 0018:ffffc900064b7a38 EFLAGS: 00050206 RAX: ffffffff84434c01 RBX: 00007fffffffe000 RCX: 0000000000001000 RDX: 0000000000001000 RSI: 0000000020f37000 RDI: ffff88807f772000 RBP: ffff888023d7f210 R08: dffffc0000000000 R09: ffffed100feee600 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000001000 R13: 0000000000001000 R14: ffff88807f772000 R15: 0000000020f37000 copy_user_generic arch/x86/include/asm/uaccess_64.h:37 [inline] raw_copy_from_user arch/x86/include/asm/uaccess_64.h:52 [inline] _copy_from_user+0xf0/0x160 lib/usercopy.c:16 copy_from_user include/linux/uaccess.h:161 [inline] snd_rawmidi_kernel_write1+0x3bd/0x660 sound/core/rawmidi.c:1547 snd_rawmidi_write+0x615/0xbe0 sound/core/rawmidi.c:1616 vfs_write+0x2e5/0xbb0 fs/read_write.c:582 ksys_write+0x19b/0x2c0 fs/read_write.c:637 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7faec5edf939 RSP: 002b:00007faec5e8b2f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007faec5f837e0 RCX: 00007faec5edf939 RDX: 00000000fffffd2c RSI: 0000000020000000 RDI: 0000000000000004 RBP: 00007faec5f50808 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 6c75727363616f6e R13: 6573726168636f69 R14: 0030656c69662f2e R15: 00007faec5f837e8 </TASK> INFO: task syz-executor394:6048 blocked for more than 147 seconds. Not tainted 6.2.0-rc1-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor394 state:D stack:24072 pid:6048 ppid:5125 flags:0x00004004 Call Trace: <TASK> context_switch kernel/sched/core.c:5244 [inline] __schedule+0x9d1/0xe40 kernel/sched/core.c:6555 schedule+0xcb/0x190 kernel/sched/core.c:6631 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6690 __mutex_lock_common+0xecf/0x26c0 kernel/locking/mutex.c:679 __mutex_lock kernel/locking/mutex.c:747 [inline] mutex_lock_nested+0x17/0x20 kernel/locking/mutex.c:799 ni_lock fs/ntfs3/ntfs_fs.h:1122 [inline] attr_data_get_block+0x4a6/0x2e40 fs/ntfs3/attrib.c:919 ntfs_get_block_vbo+0x374/0xd20 fs/ntfs3/inode.c:573 do_mpage_readpage+0x98b/0x1bb0 fs/mpage.c:208 mpage_read_folio+0x103/0x1d0 fs/mpage.c:379 filemap_read_folio+0x1ba/0x7f0 mm/filemap.c:2426 filemap_update_page+0x3ca/0x550 mm/filemap.c:2511 filemap_get_pages+0x8d8/0x1110 mm/filemap.c:2624 filemap_read+0x3e7/0xee0 mm/filemap.c:2694 call_read_iter include/linux/fs.h:2180 [inline] generic_file_splice_read+0x24e/0x650 fs/splice.c:309 do_splice_to fs/splice.c:793 [inline] splice_direct_to_actor+0x41b/0xc00 fs/splice.c:865 do_splice_direct+0x2a0/0x3f0 fs/splice.c:974 do_sendfile+0x641/0xfd0 fs/read_write.c:1255 __do_sys_sendfile64 fs/read_write.c:1323 [inline] __se_sys_sendfile64+0x178/0x1e0 fs/read_write.c:1309 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7faec5edf939 RSP: 002b:00007faec5e6a2f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 00007faec5f837f0 RCX: 00007faec5edf939 RDX: 0000000000000000 RSI: 0000000000000007 RDI: 0000000000000006 RBP: 00007faec5f50808 R08: 0000000000000000 R09: 0000000000000000 R10: 0001000000201005 R11: 0000000000000246 R12: 6c75727363616f6e R13: 6573726168636f69 R14: 0030656c69662f2e R15: 00007faec5f837f8 </TASK> INFO: task syz-executor394:6055 blocked for more than 148 seconds. Not tainted 6.2.0-rc1-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor394 state:D stack:25448 pid:6055 ppid:5125 flags:0x00004004 Call Trace: <TASK> context_switch kernel/sched/core.c:5244 [inline] __schedule+0x9d1/0xe40 kernel/sched/core.c:6555 schedule+0xcb/0x190 kernel/sched/core.c:6631 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6690 __mutex_lock_common+0xecf/0x26c0 kernel/locking/mutex.c:679 __mutex_lock kernel/locking/mutex.c:747 [inline] mutex_lock_nested+0x17/0x20 kernel/locking/mutex.c:799 ni_lock fs/ntfs3/ntfs_fs.h:1122 [inline] attr_data_get_block+0x4a6/0x2e40 fs/ntfs3/attrib.c:919 ntfs_file_mmap+0x4cc/0x780 fs/ntfs3/file.c:296 call_mmap include/linux/fs.h:2191 [inline] mmap_region+0x1022/0x1e60 mm/mmap.c:2621 do_mmap+0x8d9/0xf30 mm/mmap.c:1411 vm_mmap_pgoff+0x1e5/0x2f0 mm/util.c:520 ksys_mmap_pgoff+0x48c/0x6d0 mm/mmap.c:1457 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7faec5edf939 RSP: 002b:00007faebdc492e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 RAX: ffffffffffffffda RBX: 00007faec5f83800 RCX: 00007faec5edf939 RDX: 0000000000800006 RSI: 0000000002047ffb RDI: 0000000020001000 RBP: 00007faec5f50808 R08: 0000000000000008 R09: 0000000000000000 R10: 0000000000000011 R11: 0000000000000246 R12: 6c75727363616f6e R13: 6573726168636f69 R14: 0030656c69662f2e R15: 00007faec5f83808 </TASK> INFO: task syz-executor394:6058 blocked for more than 149 seconds. Not tainted 6.2.0-rc1-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor394 state:D stack:26216 pid:6058 ppid:5125 flags:0x00004004 Call Trace: <TASK> context_switch kernel/sched/core.c:5244 [inline] __schedule+0x9d1/0xe40 kernel/sched/core.c:6555 schedule+0xcb/0x190 kernel/sched/core.c:6631 io_schedule+0x83/0x100 kernel/sched/core.c:8811 folio_wait_bit_common+0x8ca/0x1390 mm/filemap.c:1297 folio_lock include/linux/pagemap.h:938 [inline] truncate_inode_pages_range+0xc8d/0x1650 mm/truncate.c:421 truncate_inode_pages mm/truncate.c:448 [inline] truncate_pagecache mm/truncate.c:743 [inline] truncate_setsize+0xcb/0xf0 mm/truncate.c:768 ntfs_truncate fs/ntfs3/file.c:395 [inline] ntfs3_setattr+0x5a5/0xca0 fs/ntfs3/file.c:696 notify_change+0xe50/0x1100 fs/attr.c:482 do_truncate+0x219/0x300 fs/open.c:65 handle_truncate fs/namei.c:3216 [inline] do_open fs/namei.c:3561 [inline] path_openat+0x273d/0x2de0 fs/namei.c:3714 do_filp_open+0x275/0x500 fs/namei.c:3741 do_sys_openat2+0x13b/0x500 fs/open.c:1310 do_sys_open fs/open.c:1326 [inline] __do_sys_creat fs/open.c:1402 [inline] __se_sys_creat fs/open.c:1396 [inline] __x64_sys_creat+0x11f/0x160 fs/open.c:1396 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7faec5edf939 RSP: 002b:00007faebdc282f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000055 RAX: ffffffffffffffda RBX: 00007faec5f83810 RCX: 00007faec5edf939 RDX: 00007faec5edf939 RSI: 0000000000000000 RDI: 0000000020000000 RBP: 00007faec5f50808 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 6c75727363616f6e R13: 6573726168636f69 R14: 0030656c69662f2e R15: 00007faec5f83818 </TASK> Showing all locks held in the system: 1 lock held by rcu_tasks_kthre/12: #0: ffffffff8d523910 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x30/0xd00 kernel/rcu/tasks.h:507 1 lock held by rcu_tasks_trace/13: #0: ffffffff8d524110 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x30/0xd00 kernel/rcu/tasks.h:507 1 lock held by khungtaskd/28: #0: ffffffff8d523740 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30 2 locks held by getty/4749: #0: ffff88814aad8098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:244 #1: ffffc900015902f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6e8/0x1e50 drivers/tty/n_tty.c:2177 1 lock held by syz-executor394/5211: #0: ffff88802c7bc758 (&mm->mmap_lock){++++}-{3:3}, at: mmap_read_lock+0x17/0x50 include/linux/mmap_lock.h:117 1 lock held by syz-executor394/5212: #0: ffff88802c7bc758 (&mm->mmap_lock){++++}-{3:3}, at: mmap_read_lock+0x17/0x50 include/linux/mmap_lock.h:117 3 locks held by syz-executor394/5214: #0: ffff88801ee04460 (sb_writers#9){.+.+}-{0:0}, at: do_sendfile+0x61c/0xfd0 fs/read_write.c:1254 #1: ffff888073930ca0 (mapping.invalidate_lock#3){.+.+}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:811 [inline] #1: ffff888073930ca0 (mapping.invalidate_lock#3){.+.+}-{3:3}, at: filemap_update_page+0x72/0x550 mm/filemap.c:2478 #2: ffff888073930860 (&ni->ni_lock/4){+.+.}-{3:3}, at: ni_lock fs/ntfs3/ntfs_fs.h:1122 [inline] #2: ffff888073930860 (&ni->ni_lock/4){+.+.}-{3:3}, at: attr_data_get_block+0x4a6/0x2e40 fs/ntfs3/attrib.c:919 2 locks held by syz-executor394/5221: #0: ffff88802c7bc758 (&mm->mmap_lock){++++}-{3:3}, at: mmap_write_lock_killable include/linux/mmap_lock.h:87 [inline] #0: ffff88802c7bc758 (&mm->mmap_lock){++++}-{3:3}, at: vm_mmap_pgoff+0x18f/0x2f0 mm/util.c:518 #1: ffff888073930860 (&ni->ni_lock/4){+.+.}-{3:3}, at: ni_lock fs/ntfs3/ntfs_fs.h:1122 [inline] #1: ffff888073930860 (&ni->ni_lock/4){+.+.}-{3:3}, at: attr_data_get_block+0x4a6/0x2e40 fs/ntfs3/attrib.c:919 3 locks held by syz-executor394/5222: #0: ffff88801ee04460 (sb_writers#9){.+.+}-{0:0}, at: mnt_want_write+0x3b/0x80 fs/namespace.c:508 #1: ffff888073930b00 (&sb->s_type->i_mutex_key#14){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline] #1: ffff888073930b00 (&sb->s_type->i_mutex_key#14){+.+.}-{3:3}, at: do_truncate+0x205/0x300 fs/open.c:63 #2: ffff888073930860 (&ni->ni_lock/4){+.+.}-{3:3}, at: ni_lock fs/ntfs3/ntfs_fs.h:1122 [inline] #2: ffff888073930860 (&ni->ni_lock/4){+.+.}-{3:3}, at: ntfs_truncate fs/ntfs3/file.c:393 [inline] #2: ffff888073930860 (&ni->ni_lock/4){+.+.}-{3:3}, at: ntfs3_setattr+0x596/0xca0 fs/ntfs3/file.c:696 1 lock held by syz-executor394/6046: #0: ffff888018eead18 (&mm->mmap_lock){++++}-{3:3}, at: mmap_read_lock+0x17/0x50 include/linux/mmap_lock.h:117 1 lock held by syz-executor394/6047: #0: ffff888018eead18 (&mm->mmap_lock){++++}-{3:3}, at: mmap_read_lock+0x17/0x50 include/linux/mmap_lock.h:117 3 locks held by syz-executor394/6048: #0: ffff888021b06460 (sb_writers#9){.+.+}-{0:0}, at: do_sendfile+0x61c/0xfd0 fs/read_write.c:1254 #1: ffff888075aec7a0 (mapping.invalidate_lock#3){.+.+}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:811 [inline] #1: ffff888075aec7a0 (mapping.invalidate_lock#3){.+.+}-{3:3}, at: filemap_update_page+0x72/0x550 mm/filemap.c:2478 #2: ffff888075aec360 (&ni->ni_lock/4){+.+.}-{3:3}, at: ni_lock fs/ntfs3/ntfs_fs.h:1122 [inline] #2: ffff888075aec360 (&ni->ni_lock/4){+.+.}-{3:3}, at: attr_data_get_block+0x4a6/0x2e40 fs/ntfs3/attrib.c:919 2 locks held by syz-executor394/6055: #0: ffff888018eead18 (&mm->mmap_lock){++++}-{3:3}, at: mmap_write_lock_killable include/linux/mmap_lock.h:87 [inline] #0: ffff888018eead18 (&mm->mmap_lock){++++}-{3:3}, at: vm_mmap_pgoff+0x18f/0x2f0 mm/util.c:518 #1: ffff888075aec360 (&ni->ni_lock/4){+.+.}-{3:3}, at: ni_lock fs/ntfs3/ntfs_fs.h:1122 [inline] #1: ffff888075aec360 (&ni->ni_lock/4){+.+.}-{3:3}, at: attr_data_get_block+0x4a6/0x2e40 fs/ntfs3/attrib.c:919 3 locks held by syz-executor394/6058: #0: ffff888021b06460 (sb_writers#9){.+.+}-{0:0}, at: mnt_want_write+0x3b/0x80 fs/namespace.c:508 #1: ffff888075aec600 (&sb->s_type->i_mutex_key#14){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline] #1: ffff888075aec600 (&sb->s_type->i_mutex_key#14){+.+.}-{3:3}, at: do_truncate+0x205/0x300 fs/open.c:63 #2: ffff888075aec360 (&ni->ni_lock/4){+.+.}-{3:3}, at: ni_lock fs/ntfs3/ntfs_fs.h:1122 [inline] #2: ffff888075aec360 (&ni->ni_lock/4){+.+.}-{3:3}, at: ntfs_truncate fs/ntfs3/file.c:393 [inline] #2: ffff888075aec360 (&ni->ni_lock/4){+.+.}-{3:3}, at: ntfs3_setattr+0x596/0xca0 fs/ntfs3/file.c:696 1 lock held by syz-executor394/8235: #0: ffff88807efb8a18 (&mm->mmap_lock){++++}-{3:3}, at: mmap_write_lock_killable include/linux/mmap_lock.h:87 [inline] #0: ffff88807efb8a18 (&mm->mmap_lock){++++}-{3:3}, at: vm_mmap_pgoff+0x18f/0x2f0 mm/util.c:518 1 lock held by syz-executor394/8237: #0: ffff8880b993a1d8 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x25/0x110 kernel/sched/core.c:537 4 locks held by syz-executor394/8253: ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 28 Comm: khungtaskd Not tainted 6.2.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 Call Trace: <TASK> __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1e3/0x2d0 lib/dump_stack.c:106 nmi_cpu_backtrace+0x4e3/0x560 lib/nmi_backtrace.c:111 nmi_trigger_cpumask_backtrace+0x19b/0x3e0 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:220 [inline] watchdog+0xcd5/0xd20 kernel/hung_task.c:377 kthread+0x266/0x300 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 </TASK> Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 21 Comm: ksoftirqd/1 Not tainted 6.2.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 RIP: 0010:unwind_next_frame+0x146/0x24c0 arch/x86/kernel/unwind_orc.c:467 Code: 48 89 df e8 8c 44 a6 00 49 b9 00 00 00 00 00 fc ff df f6 03 03 0f 85 96 0f 00 00 48 8b 04 24 4c 8d 78 35 4c 89 fd 48 c1 ed 03 <42> 8a 44 0d 00 84 c0 0f 85 99 1b 00 00 4d 0f be 27 48 8b 44 24 30 RSP: 0018:ffffc900001b7500 EFLAGS: 00000a03 RAX: ffffc900001b75e0 RBX: 0000000000000000 RCX: ffffffff92168003 RDX: dffffc0000000000 RSI: ffffffff8155e5a1 RDI: 0000000000000001 RBP: 1ffff92000036ec2 R08: 0000000000000007 R09: dffffc0000000000 R10: fffff52000036ec8 R11: 1ffff92000036ec6 R12: ffffc900001b7618 R13: ffffc900001b7628 R14: ffffffff8155e5a1 R15: ffffc900001b7615 FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020024000 CR3: 0000000022990000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> arch_stack_walk+0x112/0x140 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x12d/0x1f0 kernel/stacktrace.c:122 kasan_save_stack mm/kasan/common.c:45 [inline] kasan_set_track+0x4c/0x70 mm/kasan/common.c:52 kasan_save_free_info+0x27/0x40 mm/kasan/generic.c:518 ____kasan_slab_free+0xd6/0x120 mm/kasan/common.c:236 kasan_slab_free include/linux/kasan.h:177 [inline] slab_free_hook mm/slub.c:1781 [inline] slab_free_freelist_hook+0x12e/0x1a0 mm/slub.c:1807 slab_free mm/slub.c:3787 [inline] kmem_cache_free+0x94/0x1d0 mm/slub.c:3809 rcu_do_batch kernel/rcu/tree.c:2246 [inline] rcu_core+0xa91/0x1790 kernel/rcu/tree.c:2506 __do_softirq+0x277/0x75b kernel/softirq.c:571 run_ksoftirqd+0xc1/0x120 kernel/softirq.c:934 smpboot_thread_fn+0x533/0xa10 kernel/smpboot.c:164 kthread+0x266/0x300 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 </TASK> INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.096 msecs --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller(a)googlegroups.com. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. syzbot can test patches for this issue, for details see: https://goo.gl/tpsmEJ#testing-patches

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