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| Kernel | Title | Rank 🛈 | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
|---|---|---|---|---|---|---|---|---|---|---|
| linux-5.15 | INFO: task hung in diUpdatePMap | 1 | 1 | 242d | 242d | 0/3 | auto-obsoleted due to no activity on 2025/04/30 13:43 | |||
| upstream | INFO: task hung in diUpdatePMap jfs | 1 | 3 | 224d | 334d | 0/29 | auto-obsoleted due to no activity on 2025/05/08 19:07 |
INFO: task jfsCommit:101 blocked for more than 144 seconds.
Not tainted 6.15.0-rc7-syzkaller-gd7fa1af5b33e #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:jfsCommit state:D stack:0 pid:101 tgid:101 ppid:2 task_flags:0x200040 flags:0x00000010
Call trace:
__switch_to+0x414/0x834 arch/arm64/kernel/process.c:735 (T)
context_switch kernel/sched/core.c:5382 [inline]
__schedule+0x13b0/0x28d4 kernel/sched/core.c:6767
__schedule_loop kernel/sched/core.c:6845 [inline]
schedule+0xb4/0x230 kernel/sched/core.c:6860
io_schedule+0x84/0xf0 kernel/sched/core.c:7742
folio_wait_bit_common+0x56c/0x9e0 mm/filemap.c:1317
folio_wait_bit+0x30/0x40 mm/filemap.c:1456
folio_wait_writeback+0x9c/0x100 mm/page-writeback.c:3149
metapage_wait_for_io fs/jfs/jfs_metapage.h:110 [inline]
diUpdatePMap+0x1f4/0xb90 fs/jfs/jfs_imap.c:2752
txUpdateMap+0x708/0x8d0 fs/jfs/jfs_txnmgr.c:2356
txLazyCommit fs/jfs/jfs_txnmgr.c:2664 [inline]
jfs_lazycommit+0x394/0x94c fs/jfs/jfs_txnmgr.c:2733
kthread+0x5fc/0x75c kernel/kthread.c:464
ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:847
INFO: task syz.0.25:6705 blocked for more than 145 seconds.
Not tainted 6.15.0-rc7-syzkaller-gd7fa1af5b33e #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.0.25 state:D stack:0 pid:6705 tgid:6702 ppid:6489 task_flags:0x400140 flags:0x00000019
Call trace:
__switch_to+0x414/0x834 arch/arm64/kernel/process.c:735 (T)
context_switch kernel/sched/core.c:5382 [inline]
__schedule+0x13b0/0x28d4 kernel/sched/core.c:6767
__schedule_loop kernel/sched/core.c:6845 [inline]
schedule+0xb4/0x230 kernel/sched/core.c:6860
io_schedule+0x84/0xf0 kernel/sched/core.c:7742
bit_wait_io+0x1c/0xac kernel/sched/wait_bit.c:247
__wait_on_bit kernel/sched/wait_bit.c:49 [inline]
out_of_line_wait_on_bit+0x158/0x1f0 kernel/sched/wait_bit.c:64
wait_on_bit_io include/linux/wait_bit.h:105 [inline]
__wait_on_buffer+0x6c/0x7c fs/buffer.c:123
wait_on_buffer include/linux/buffer_head.h:422 [inline]
ext4_commit_super+0x300/0x4e4 fs/ext4/super.c:6226
ext4_setup_super+0x5b0/0x9b8 fs/ext4/super.c:3105
__ext4_fill_super fs/ext4/super.c:5524 [inline]
ext4_fill_super+0x3894/0x4e88 fs/ext4/super.c:5726
get_tree_bdev_flags+0x360/0x414 fs/super.c:1636
get_tree_bdev+0x2c/0x3c fs/super.c:1659
ext4_get_tree+0x28/0x38 fs/ext4/super.c:5758
vfs_get_tree+0x90/0x28c fs/super.c:1759
do_new_mount+0x228/0x814 fs/namespace.c:3881
path_mount+0x5b4/0xde0 fs/namespace.c:4208
do_mount fs/namespace.c:4221 [inline]
__do_sys_mount fs/namespace.c:4432 [inline]
__se_sys_mount fs/namespace.c:4409 [inline]
__arm64_sys_mount+0x3e8/0x468 fs/namespace.c:4409
__invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]
invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49
el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132
do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151
el0_svc+0x58/0x17c arch/arm64/kernel/entry-common.c:767
el0t_64_sync_handler+0x78/0x108 arch/arm64/kernel/entry-common.c:786
el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600
INFO: task kmmpd-loop0:6706 blocked for more than 148 seconds.
Not tainted 6.15.0-rc7-syzkaller-gd7fa1af5b33e #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kmmpd-loop0 state:D stack:0 pid:6706 tgid:6706 ppid:2 task_flags:0x208040 flags:0x00000010
Call trace:
__switch_to+0x414/0x834 arch/arm64/kernel/process.c:735 (T)
context_switch kernel/sched/core.c:5382 [inline]
__schedule+0x13b0/0x28d4 kernel/sched/core.c:6767
__schedule_loop kernel/sched/core.c:6845 [inline]
schedule+0xb4/0x230 kernel/sched/core.c:6860
io_schedule+0x84/0xf0 kernel/sched/core.c:7742
bit_wait_io+0x1c/0xac kernel/sched/wait_bit.c:247
__wait_on_bit kernel/sched/wait_bit.c:49 [inline]
out_of_line_wait_on_bit+0x158/0x1f0 kernel/sched/wait_bit.c:64
wait_on_bit_io include/linux/wait_bit.h:105 [inline]
__wait_on_buffer+0x6c/0x7c fs/buffer.c:123
wait_on_buffer include/linux/buffer_head.h:422 [inline]
write_mmp_block_thawed+0x208/0x2dc fs/ext4/mmp.c:52
write_mmp_block+0x1d0/0x5dc fs/ext4/mmp.c:67
kmmpd+0x2ec/0x9b8 fs/ext4/mmp.c:178
kthread+0x5fc/0x75c kernel/kthread.c:464
ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:847
Showing all locks held in the system:
1 lock held by kthreadd/2:
4 locks held by kworker/R-netns/8:
| Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2025/05/31 17:53 | git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci | d7fa1af5b33e | 3d2f584d | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-gce-arm64 | INFO: task hung in diUpdatePMap |