ci starts bisection 2023-01-26 12:17:55.598610004 +0000 UTC m=+320789.544672096
bisecting fixing commit since 4da34b7d175dc99b8befebd69e96546c960d526c
building syzkaller on c0b80a55c9c8cfe75e77c555ed0d4ae7aa373cc2
ensuring issue is reproducible on original commit 4da34b7d175dc99b8befebd69e96546c960d526c
testing commit 4da34b7d175dc99b8befebd69e96546c960d526c gcc
compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: 3a59606dbcab78d2b1a75e47bb1c22cdef0060e720517c5cfb300787e717dd9c
all runs: crashed: INFO: task hung in lock_metapage
testing current HEAD 7c46948a6e9cf47ed03b0d489fde894ad46f1437
testing commit 7c46948a6e9cf47ed03b0d489fde894ad46f1437 gcc
compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: 842836cfbe0529ae92f66f01117706fb1c8b9301bfecbf482d00e086d0ccebf3
all runs: crashed: INFO: task hung in lock_metapage
revisions tested: 2, total time: 28m18.043262904s (build: 15m24.004609412s, test: 11m49.170551993s)
the crash still happens on HEAD
commit msg: Merge tag 'fs.fuse.acl.v6.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/idmapping
crash: INFO: task hung in lock_metapage
INFO: task jfsCommit:103 blocked for more than 143 seconds.
Not tainted 6.2.0-rc5-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:jfsCommit state:D stack:27792 pid:103 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5293 [inline]
__schedule+0xb4a/0x5410 kernel/sched/core.c:6606
schedule+0xda/0x1b0 kernel/sched/core.c:6682
io_schedule+0xba/0x130 kernel/sched/core.c:8868
__lock_metapage fs/jfs/jfs_metapage.c:50 [inline]
lock_metapage+0x1d7/0x3c0 fs/jfs/jfs_metapage.c:64
__get_metapage+0x2de/0xd10 fs/jfs/jfs_metapage.c:639
diIAGRead.isra.0+0xab/0x120 fs/jfs/jfs_imap.c:2662
diFree+0x8a9/0x3340 fs/jfs/jfs_imap.c:955
jfs_evict_inode+0x331/0x420 fs/jfs/inode.c:156
evict+0x296/0x5d0 fs/inode.c:664
txUpdateMap+0x781/0x9f0 fs/jfs/jfs_txnmgr.c:2362
txLazyCommit fs/jfs/jfs_txnmgr.c:2659 [inline]
jfs_lazycommit+0x4c8/0x900 fs/jfs/jfs_txnmgr.c:2727
kthread+0x294/0x330 kernel/kthread.c:376
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/12:
#0: ffffffff8b17f9d0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x26/0xc70 kernel/rcu/tasks.h:507
1 lock held by rcu_tasks_trace/13:
#0: ffffffff8b17f6d0 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x26/0xc70 kernel/rcu/tasks.h:507
1 lock held by khungtaskd/28:
#0: ffffffff8b180520 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6494
2 locks held by jfsCommit/102:
#0: ffff88801f760920 (&(imap->im_aglock[index])){+.+.}-{3:3}, at: diFree+0x261/0x3340 fs/jfs/jfs_imap.c:885
#1: ffff888072d55db8 (&jfs_ip->rdwrlock/1){.+.+}-{3:3}, at: diFree+0x27a/0x3340 fs/jfs/jfs_imap.c:890
2 locks held by jfsCommit/103:
#0: ffff88806efe8920 (&(imap->im_aglock[index])){+.+.}-{3:3}, at: diFree+0x261/0x3340 fs/jfs/jfs_imap.c:885
#1: ffff888072d52638 (&jfs_ip->rdwrlock/1){.+.+}-{3:3}, at: diFree+0x27a/0x3340 fs/jfs/jfs_imap.c:890
2 locks held by getty/4727:
#0: ffff888149ea6098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x1f/0x70 drivers/tty/tty_ldisc.c:244
#1: ffffc900015c02f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xb6f/0x1040 drivers/tty/n_tty.c:2177
1 lock held by syz-executor.0/6355:
#0: ffff88807a8ea0e0 (&type->s_umount_key#50){+.+.}-{3:3}, at: deactivate_super+0x5f/0x80 fs/super.c:362
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 28 Comm: khungtaskd Not tainted 6.2.0-rc5-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x57/0x7d lib/dump_stack.c:106
nmi_cpu_backtrace.cold+0x18/0x106 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x255/0x2d0 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+0x8c4/0xc60 kernel/hung_task.c:377
kthread+0x294/0x330 kernel/kthread.c:376
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: 1057 Comm: kworker/u4:5 Not tainted 6.2.0-rc5-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023
Workqueue: phy7 ieee80211_iface_work
RIP: 0010:on_stack arch/x86/include/asm/stacktrace.h:55 [inline]
RIP: 0010:stack_access_ok+0x55/0x1d0 arch/x86/kernel/unwind_orc.c:366
Code: c0 74 08 3c 03 0f 8e 47 01 00 00 8b 0b 85 c9 74 65 48 8d 7b 08 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 <0f> 85 2c 01 00 00 48 8d 7b 10 4c 8b 6b 08 48 b8 00 00 00 00 00 fc
RSP: 0018:ffffc90004caf450 EFLAGS: 00000246
RAX: dffffc0000000000 RBX: ffffc90004caf4f8 RCX: 0000000000000001
RDX: 1ffff92000995ea0 RSI: ffffc90004cafcb0 RDI: ffffc90004caf500
RBP: ffffc90004cafcb0 R08: ffffffff8e09e1a4 R09: ffffc90004caf52c
R10: fffff52000995eaa R11: ffffc90004cafcb8 R12: 0000000000000008
R13: ffffc90004caf4f8 R14: ffffc90004cafcb0 R15: ffffffff8e09e1a8
FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000563134fac680 CR3: 000000000ae8e000 CR4: 0000000000350ee0
Call Trace:
deref_stack_reg arch/x86/kernel/unwind_orc.c:376 [inline]
unwind_next_frame+0x12b4/0x1cc0 arch/x86/kernel/unwind_orc.c:624
arch_stack_walk+0x7d/0xe0 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x8c/0xc0 kernel/stacktrace.c:122
kasan_save_stack+0x1e/0x40 mm/kasan/common.c:45
kasan_set_track+0x21/0x30 mm/kasan/common.c:52
____kasan_kmalloc mm/kasan/common.c:371 [inline]
____kasan_kmalloc mm/kasan/common.c:330 [inline]
__kasan_kmalloc+0xa1/0xb0 mm/kasan/common.c:380
kasan_kmalloc include/linux/kasan.h:211 [inline]
__do_kmalloc_node mm/slab_common.c:968 [inline]
__kmalloc+0x56/0xc0 mm/slab_common.c:981
kmalloc include/linux/slab.h:584 [inline]
kzalloc include/linux/slab.h:720 [inline]
ieee802_11_parse_elems_full+0xe6/0x12b0 net/mac80211/util.c:1619
ieee802_11_parse_elems_crc net/mac80211/ieee80211_i.h:2260 [inline]
ieee802_11_parse_elems net/mac80211/ieee80211_i.h:2267 [inline]
ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1605 [inline]
ieee80211_ibss_rx_queued_mgmt+0xb7f/0x31d0 net/mac80211/ibss.c:1638
ieee80211_iface_process_skb net/mac80211/iface.c:1583 [inline]
ieee80211_iface_work+0x6f5/0x9d0 net/mac80211/iface.c:1637
process_one_work+0x8ba/0x14b0 kernel/workqueue.c:2289
worker_thread+0x598/0xec0 kernel/workqueue.c:2436
kthread+0x294/0x330 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308