ci starts bisection 2023-05-04 22:12:05.292072224 +0000 UTC m=+35710.174675733
bisecting fixing commit since f339c2597ebb00e738f2b6328c14804ed19f5d57
building syzkaller on 93e26d605eebce2ad19e6f37d9e96a872ca55cce
ensuring issue is reproducible on original commit f339c2597ebb00e738f2b6328c14804ed19f5d57
testing commit f339c2597ebb00e738f2b6328c14804ed19f5d57 gcc
compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: 49ceca4817f4fc169c1a73b15cdabb88cdc83577a6cb48313262b32bc49b7cae
all runs: crashed: INFO: trying to register non-static key in net_free
testing current HEAD 3c4aa44343777844e425c28f1427127f3e55826f
testing commit 3c4aa44343777844e425c28f1427127f3e55826f gcc
compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: 8ba9bf4827c42773ea79e6cc04725d6b25e6629ab08f6e3c333ee312af5ab69f
all runs: crashed: INFO: task hung in lock_metapage
revisions tested: 2, total time: 29m31.997019297s (build: 17m57.23250026s, test: 10m31.319720652s)
the crash still happens on HEAD
commit msg: Merge tag 'ceph-for-6.4-rc1' of https://github.com/ceph/ceph-client
crash: INFO: task hung in lock_metapage
INFO: task jfsCommit:104 blocked for more than 143 seconds.
Not tainted 6.3.0-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:jfsCommit state:D stack:27760 pid:104 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5343 [inline]
__schedule+0xc25/0x57f0 kernel/sched/core.c:6669
schedule+0xde/0x1a0 kernel/sched/core.c:6745
io_schedule+0xbe/0x130 kernel/sched/core.c:8979
__lock_metapage fs/jfs/jfs_metapage.c:50 [inline]
lock_metapage+0x1d7/0x3c0 fs/jfs/jfs_metapage.c:64
__get_metapage+0x2d4/0xed0 fs/jfs/jfs_metapage.c:639
diIAGRead.isra.0+0xab/0x120 fs/jfs/jfs_imap.c:2662
diFree+0x8c9/0x3380 fs/jfs/jfs_imap.c:955
jfs_evict_inode+0x349/0x440 fs/jfs/inode.c:156
evict+0x296/0x5d0 fs/inode.c:665
txUpdateMap+0x847/0xa50 fs/jfs/jfs_txnmgr.c:2362
txLazyCommit fs/jfs/jfs_txnmgr.c:2659 [inline]
jfs_lazycommit+0x4db/0x950 fs/jfs/jfs_txnmgr.c:2727
kthread+0x2ea/0x3c0 kernel/kthread.c:379
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/13:
#0: ffffffff8b78d070 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x31/0xd80 kernel/rcu/tasks.h:518
1 lock held by rcu_tasks_trace/14:
#0: ffffffff8b78cd70 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x31/0xd80 kernel/rcu/tasks.h:518
1 lock held by khungtaskd/27:
#0: ffffffff8b78dc80 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x340 kernel/locking/lockdep.c:6545
2 locks held by jfsCommit/103:
#0: ffff88806bd00920 (&(imap->im_aglock[index])){+.+.}-{3:3}, at: diFree+0x265/0x3380 fs/jfs/jfs_imap.c:885
#1: ffff888070a21cf8 (&jfs_ip->rdwrlock/1){.+.+}-{3:3}, at: diFree+0x27e/0x3380 fs/jfs/jfs_imap.c:890
2 locks held by jfsCommit/104:
#0: ffff8880782a0920 (&(imap->im_aglock[index])){+.+.}-{3:3}, at: diFree+0x265/0x3380 fs/jfs/jfs_imap.c:885
#1: ffff888075bba638 (&jfs_ip->rdwrlock/1){.+.+}-{3:3}, at: diFree+0x27e/0x3380 fs/jfs/jfs_imap.c:890
2 locks held by getty/4741:
#0: ffff888149e57098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x23/0x80 drivers/tty/tty_ldisc.c:243
#1: ffffc900020582f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xb73/0x1040 drivers/tty/n_tty.c:2176
1 lock held by syz-executor.0/5756:
#0: ffff88806c26e0e0 (&type->s_umount_key#50){+.+.}-{3:3}, at: deactivate_super+0x63/0x80 fs/super.c:361
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 27 Comm: khungtaskd Not tainted 6.3.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x64/0xb0 lib/dump_stack.c:106
nmi_cpu_backtrace+0x175/0x200 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x1bc/0x200 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline]
watchdog+0x9f9/0xcf0 kernel/hung_task.c:379
kthread+0x2ea/0x3c0 kernel/kthread.c:379
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 57 Comm: kworker/u4:4 Not tainted 6.3.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023
Workqueue: phy8 ieee80211_iface_work (phy_events)
RIP: 0010:strscpy+0x16d/0x2a0 lib/string.c:174
Code: 00 00 00 49 bc 00 00 00 00 00 fc ff df 4c 89 e8 48 8d 3c 03 49 89 f8 49 89 f9 49 c1 e8 03 41 83 e1 07 47 0f b6 04 20 45 38 c8 <7f> 09 45 84 c0 0f 85 b5 00 00 00 49 8d 3c 07 0f b6 2c 03 49 89 f8
RSP: 0018:ffffc9000202fce0 EFLAGS: 00000093
RAX: 0000000000000003 RBX: ffff88807831b960 RCX: 0000000000000004
RDX: 0000000000000005 RSI: 0000000000000005 RDI: ffff88807831b963
RBP: 0000000000000079 R08: 0000000000000000 R09: 0000000000000003
R10: ffffed100dcc4304 R11: 0000000000000000 R12: dffffc0000000000
R13: 0000000000000000 R14: ffff88806e621820 R15: ffff88823bc0e074
FS: 0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005575fdef1680 CR3: 000000007803d000 CR4: 0000000000350ee0
Call Trace:
strscpy include/linux/fortify-string.h:371 [inline]
process_one_work+0x54a/0x1410 kernel/workqueue.c:2347
worker_thread+0x5af/0xf00 kernel/workqueue.c:2552
kthread+0x2ea/0x3c0 kernel/kthread.c:379
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308