ci starts bisection 2023-03-08 00:49:24.855130422 +0000 UTC m=+5933.293890283
bisecting fixing commit since 837c07cf68fec9cad455d5fc86aab5350cc06c53
building syzkaller on be607b78d7dea8ef5a0267ae7396fded7dc016d5
ensuring issue is reproducible on original commit 837c07cf68fec9cad455d5fc86aab5350cc06c53
testing commit 837c07cf68fec9cad455d5fc86aab5350cc06c53 gcc
compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: 36885c89f7a779bc0eb32ab5042bc8231b3280b4587b19302b4796dd354b3596
run #0: crashed: INFO: rcu detected stall in corrupted
run #1: crashed: INFO: rcu detected stall in corrupted
run #2: crashed: INFO: rcu detected stall in corrupted
run #3: crashed: INFO: rcu detected stall in corrupted
run #4: crashed: INFO: rcu detected stall in corrupted
run #5: crashed: INFO: rcu detected stall in corrupted
run #6: crashed: INFO: rcu detected stall in corrupted
run #7: crashed: INFO: rcu detected stall in corrupted
run #8: crashed: INFO: rcu detected stall in corrupted
run #9: crashed: INFO: rcu detected stall in corrupted
run #10: crashed: INFO: rcu detected stall in corrupted
run #11: crashed: INFO: task hung in f2fs_issue_checkpoint
run #12: crashed: INFO: task hung in f2fs_issue_checkpoint
run #13: crashed: INFO: task hung in f2fs_issue_checkpoint
run #14: crashed: INFO: task hung in f2fs_issue_checkpoint
run #15: crashed: INFO: task hung in f2fs_issue_checkpoint
run #16: crashed: INFO: task hung in f2fs_issue_checkpoint
run #17: crashed: INFO: task hung in f2fs_issue_checkpoint
run #18: crashed: INFO: task hung in f2fs_flush_inline_data
run #19: crashed: INFO: task hung in f2fs_issue_checkpoint
testing current HEAD 63355b9884b3d1677de6bd1517cd2b8a9bf53978
testing commit 63355b9884b3d1677de6bd1517cd2b8a9bf53978 gcc
compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: 31d9cd42cc7215a2657e80cd42f4ce257e6206d22684062b76faa573b33a19c6
all runs: crashed: INFO: task hung in f2fs_issue_checkpoint
revisions tested: 2, total time: 32m2.668831194s (build: 17m56.293364211s, test: 13m30.195765652s)
the crash still happens on HEAD
commit msg: cpumask: be more careful with 'cpumask_setall()'
crash: INFO: task hung in f2fs_issue_checkpoint
INFO: task kworker/u4:2:33 blocked for more than 143 seconds.
Not tainted 6.3.0-rc1-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u4:2 state:D
stack:26568 pid:33 ppid:2 flags:0x00004000
Workqueue: writeback wb_workfn
(flush-7:3)
Call Trace:
context_switch kernel/sched/core.c:5304 [inline]
__schedule+0xc37/0x57d0 kernel/sched/core.c:6622
schedule+0xde/0x1a0 kernel/sched/core.c:6698
schedule_timeout+0x22d/0x270 kernel/time/timer.c:2143
do_wait_for_common kernel/sched/completion.c:85 [inline]
__wait_for_common+0x1ce/0x5c0 kernel/sched/completion.c:106
f2fs_issue_checkpoint+0x254/0x420 fs/f2fs/checkpoint.c:1885
f2fs_balance_fs_bg+0x463/0xcd0 fs/f2fs/segment.c:506
f2fs_write_node_pages+0x12d/0xb10 fs/f2fs/node.c:2110
do_writepages+0x174/0x5c0 mm/page-writeback.c:2551
__writeback_single_inode+0x10a/0xf30 fs/fs-writeback.c:1600
writeback_sb_inodes+0x476/0xd00 fs/fs-writeback.c:1891
__writeback_inodes_wb+0xb2/0x200 fs/fs-writeback.c:1962
wb_writeback+0x681/0xa30 fs/fs-writeback.c:2067
wb_check_old_data_flush fs/fs-writeback.c:2167 [inline]
wb_do_writeback fs/fs-writeback.c:2220 [inline]
wb_workfn+0x6a5/0xf90 fs/fs-writeback.c:2248
process_one_work+0x8ba/0x15a0 kernel/workqueue.c:2390
worker_thread+0x59c/0xec0 kernel/workqueue.c:2537
kthread+0x298/0x340 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
INFO: task kworker/u4:5:1020 blocked for more than 146 seconds.
Not tainted 6.3.0-rc1-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u4:5 state:D
stack:27120 pid:1020 ppid:2 flags:0x00004000
Workqueue: writeback wb_workfn
(flush-7:4)
Call Trace:
context_switch kernel/sched/core.c:5304 [inline]
__schedule+0xc37/0x57d0 kernel/sched/core.c:6622
schedule+0xde/0x1a0 kernel/sched/core.c:6698
schedule_timeout+0x22d/0x270 kernel/time/timer.c:2143
do_wait_for_common kernel/sched/completion.c:85 [inline]
__wait_for_common+0x1ce/0x5c0 kernel/sched/completion.c:106
f2fs_issue_checkpoint+0x254/0x420 fs/f2fs/checkpoint.c:1885
f2fs_balance_fs_bg+0x463/0xcd0 fs/f2fs/segment.c:506
f2fs_write_node_pages+0x12d/0xb10 fs/f2fs/node.c:2110
do_writepages+0x174/0x5c0 mm/page-writeback.c:2551
__writeback_single_inode+0x10a/0xf30 fs/fs-writeback.c:1600
writeback_sb_inodes+0x476/0xd00 fs/fs-writeback.c:1891
__writeback_inodes_wb+0xb2/0x200 fs/fs-writeback.c:1962
wb_writeback+0x681/0xa30 fs/fs-writeback.c:2067
wb_check_old_data_flush fs/fs-writeback.c:2167 [inline]
wb_do_writeback fs/fs-writeback.c:2220 [inline]
wb_workfn+0x6a5/0xf90 fs/fs-writeback.c:2248
process_one_work+0x8ba/0x15a0 kernel/workqueue.c:2390
worker_thread+0x59c/0xec0 kernel/workqueue.c:2537
kthread+0x298/0x340 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
INFO: task f2fs_ckpt-7:4:5831 blocked for more than 149 seconds.
Not tainted 6.3.0-rc1-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:f2fs_ckpt-7:4 state:D
stack:28736 pid:5831 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5304 [inline]
__schedule+0xc37/0x57d0 kernel/sched/core.c:6622
schedule+0xde/0x1a0 kernel/sched/core.c:6698
io_schedule+0xbe/0x130 kernel/sched/core.c:8884
folio_wait_bit_common+0x2af/0x730 mm/filemap.c:1301
lock_page include/linux/pagemap.h:973 [inline]
f2fs_flush_inline_data+0x5d4/0xb00 fs/f2fs/node.c:1909
block_operations+0xb8/0xb50 fs/f2fs/checkpoint.c:1219
f2fs_write_checkpoint+0x526/0x4700 fs/f2fs/checkpoint.c:1653
__write_checkpoint_sync fs/f2fs/checkpoint.c:1770 [inline]
__checkpoint_and_complete_reqs+0xdd/0x320 fs/f2fs/checkpoint.c:1789
issue_checkpoint_thread+0xc0/0x1e0 fs/f2fs/checkpoint.c:1820
kthread+0x298/0x340 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
INFO: task f2fs_ckpt-7:3:5832 blocked for more than 152 seconds.
Not tainted 6.3.0-rc1-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:f2fs_ckpt-7:3 state:D
stack:28864 pid:5832 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5304 [inline]
__schedule+0xc37/0x57d0 kernel/sched/core.c:6622
schedule+0xde/0x1a0 kernel/sched/core.c:6698
io_schedule+0xbe/0x130 kernel/sched/core.c:8884
folio_wait_bit_common+0x2af/0x730 mm/filemap.c:1301
lock_page include/linux/pagemap.h:973 [inline]
f2fs_flush_inline_data+0x5d4/0xb00 fs/f2fs/node.c:1909