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From: syzbot <syzbot+79cb3895126af21042fa-Pl5Pbv+GP7P466ipTTIvnc23WoclnBCfAL8bYrjMMd8@public.gmane.org>
To: konishi.ryusuke-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org,
	linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	linux-nilfs-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	syzkaller-bugs-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
Subject: [syzbot] WARNING: locking bug in nilfs_find_or_create_root
Date: Wed, 28 Sep 2022 10:26:48 -0700	[thread overview]
Message-ID: <000000000000cdf4e105e9c0108f@google.com> (raw)

Hello,

syzbot found the following issue on:

HEAD commit:    c194837ebb57 Merge branch 'for-next/core', remote-tracking..
git tree:       git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci
console output: https://syzkaller.appspot.com/x/log.txt?x=1135c4ff080000
kernel config:  https://syzkaller.appspot.com/x/.config?x=15a770deac0c935a
dashboard link: https://syzkaller.appspot.com/bug?extid=79cb3895126af21042fa
compiler:       Debian clang version 13.0.1-++20220126092033+75e33f71c2da-1~exp1~20220126212112.63, GNU ld (GNU Binutils for Debian) 2.35.2
userspace arch: arm64
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=1649fcdf080000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=10f24cff080000

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/8d8ae425e7fa/disk-c194837e.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/c540d501ebe7/vmlinux-c194837e.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+79cb3895126af21042fa-Pl5Pbv+GP7P466ipTTIvnc23WoclnBCfAL8bYrjMMd8@public.gmane.org

NILFS (loop0): broken superblock, retrying with spare superblock (blocksize = 1024)
------------[ cut here ]------------
DEBUG_LOCKS_WARN_ON(1)
WARNING: CPU: 0 PID: 3052 at kernel/locking/lockdep.c:231 check_wait_context kernel/locking/lockdep.c:4727 [inline]
WARNING: CPU: 0 PID: 3052 at kernel/locking/lockdep.c:231 __lock_acquire+0x2b0/0x30a4 kernel/locking/lockdep.c:5003
Modules linked in:
CPU: 0 PID: 3052 Comm: syz-executor334 Not tainted 6.0.0-rc6-syzkaller-17742-gc194837ebb57 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022
pstate: 604000c5 (nZCv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : check_wait_context kernel/locking/lockdep.c:4727 [inline]
pc : __lock_acquire+0x2b0/0x30a4 kernel/locking/lockdep.c:5003
lr : hlock_class kernel/locking/lockdep.c:231 [inline]
lr : check_wait_context kernel/locking/lockdep.c:4727 [inline]
lr : __lock_acquire+0x298/0x30a4 kernel/locking/lockdep.c:5003
sp : ffff800012763850
x29: ffff800012763930 x28: 0000000000000001 x27: ffff0000c70a3528
x26: ffff0000cb0b4300 x25: ffff0000c70a3f58 x24: 0000000000000000
x23: 0000000000000000 x22: 0000000000000001 x21: 0000000000000000
x20: 0000000000000000 x19: 5555560001430f3e x18: 00000000000000c0
x17: ffff80000dd0b198 x16: ffff80000db49158 x15: ffff0000c70a3500
x14: 0000000000000000 x13: 0000000000000012 x12: ffff80000d5ef920
x11: ff808000081c1630 x10: ffff80000dd0b198 x9 : 4ab275c465431000
x8 : 0000000000000000 x7 : 4e5241575f534b43 x6 : ffff800008195d30
x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000000
x2 : 0000000000000000 x1 : 0000000100000001 x0 : 0000000000000016
Call trace:
 check_wait_context kernel/locking/lockdep.c:4727 [inline]
 __lock_acquire+0x2b0/0x30a4 kernel/locking/lockdep.c:5003
 lock_acquire+0x100/0x1f8 kernel/locking/lockdep.c:5666
 __raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline]
 _raw_spin_lock+0x54/0x6c kernel/locking/spinlock.c:154
 spin_lock include/linux/spinlock.h:349 [inline]
 nilfs_lookup_root fs/nilfs2/the_nilfs.c:716 [inline]
 nilfs_find_or_create_root+0x34/0x310 fs/nilfs2/the_nilfs.c:743
 nilfs_attach_checkpoint+0x64/0x1c8 fs/nilfs2/super.c:519
 nilfs_fill_super+0x154/0x2f8 fs/nilfs2/super.c:1064
 nilfs_mount+0x370/0x52c fs/nilfs2/super.c:1317
 legacy_get_tree+0x30/0x74 fs/fs_context.c:610
 vfs_get_tree+0x40/0x140 fs/super.c:1530
 do_new_mount+0x1dc/0x4e4 fs/namespace.c:3040
 path_mount+0x358/0x914 fs/namespace.c:3370
 do_mount fs/namespace.c:3383 [inline]
 __do_sys_mount fs/namespace.c:3591 [inline]
 __se_sys_mount fs/namespace.c:3568 [inline]
 __arm64_sys_mount+0x2c4/0x3c4 fs/namespace.c:3568
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall arch/arm64/kernel/syscall.c:52 [inline]
 el0_svc_common+0x138/0x220 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x48/0x164 arch/arm64/kernel/syscall.c:206
 el0_svc+0x58/0x150 arch/arm64/kernel/entry-common.c:636
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:654
 el0t_64_sync+0x18c/0x190
irq event stamp: 2725
hardirqs last  enabled at (2725): [<ffff800008162680>] raw_spin_rq_unlock_irq kernel/sched/sched.h:1367 [inline]
hardirqs last  enabled at (2725): [<ffff800008162680>] finish_lock_switch+0x94/0xe8 kernel/sched/core.c:4942
hardirqs last disabled at (2724): [<ffff80000bfc3cdc>] __schedule+0x84/0x5a0 kernel/sched/core.c:6393
softirqs last  enabled at (2540): [<ffff8000080102e4>] _stext+0x2e4/0x37c
softirqs last disabled at (2523): [<ffff800008017c14>] ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:79
---[ end trace 0000000000000000 ]---
Unable to handle kernel NULL pointer dereference at virtual address 00000000000000b8
Mem abort info:
  ESR = 0x0000000096000006
  EC = 0x25: DABT (current EL), IL = 32 bits
  SET = 0, FnV = 0
  EA = 0, S1PTW = 0
  FSC = 0x06: level 2 translation fault
Data abort info:
  ISV = 0, ISS = 0x00000006
  CM = 0, WnR = 0
user pgtable: 4k pages, 48-bit VAs, pgdp=0000000107187000
[00000000000000b8] pgd=08000001097ad003, p4d=08000001097ad003, pud=080000010b0a7003, pmd=0000000000000000
Internal error: Oops: 0000000096000006 [#1] PREEMPT SMP
Modules linked in:
CPU: 0 PID: 3052 Comm: syz-executor334 Tainted: G        W          6.0.0-rc6-syzkaller-17742-gc194837ebb57 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022
pstate: 604000c5 (nZCv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : check_wait_context kernel/locking/lockdep.c:4727 [inline]
pc : __lock_acquire+0x2d0/0x30a4 kernel/locking/lockdep.c:5003
lr : hlock_class kernel/locking/lockdep.c:231 [inline]
lr : check_wait_context kernel/locking/lockdep.c:4727 [inline]
lr : __lock_acquire+0x298/0x30a4 kernel/locking/lockdep.c:5003
sp : ffff800012763850
x29: ffff800012763930 x28: 0000000000000001 x27: ffff0000c70a3528
x26: ffff0000cb0b4300 x25: ffff0000c70a3f58 x24: 0000000000000000
x23: 0000000000000000 x22: 0000000000000001 x21: 0000000000000000
x20: 0000000000000000 x19: 5555560001430f3e x18: 00000000000000c0
x17: ffff80000dd0b198 x16: ffff80000db49158 x15: ffff0000c70a3500
x14: 0000000000000000 x13: 0000000000000012 x12: ffff80000d5ef920
x11: ff808000081c1630 x10: ffff80000dd0b198 x9 : 0000000000040f3e
x8 : 0000000000000000 x7 : 4e5241575f534b43 x6 : ffff800008195d30
x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000000
x2 : 0000000000000000 x1 : 0000000100000001 x0 : 0000000000000016
Call trace:
 hlock_class kernel/locking/lockdep.c:222 [inline]
 check_wait_context kernel/locking/lockdep.c:4728 [inline]
 __lock_acquire+0x2d0/0x30a4 kernel/locking/lockdep.c:5003
 lock_acquire+0x100/0x1f8 kernel/locking/lockdep.c:5666
 __raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline]
 _raw_spin_lock+0x54/0x6c kernel/locking/spinlock.c:154
 spin_lock include/linux/spinlock.h:349 [inline]
 nilfs_lookup_root fs/nilfs2/the_nilfs.c:716 [inline]
 nilfs_find_or_create_root+0x34/0x310 fs/nilfs2/the_nilfs.c:743
 nilfs_attach_checkpoint+0x64/0x1c8 fs/nilfs2/super.c:519
 nilfs_fill_super+0x154/0x2f8 fs/nilfs2/super.c:1064
 nilfs_mount+0x370/0x52c fs/nilfs2/super.c:1317
 legacy_get_tree+0x30/0x74 fs/fs_context.c:610
 vfs_get_tree+0x40/0x140 fs/super.c:1530
 do_new_mount+0x1dc/0x4e4 fs/namespace.c:3040
 path_mount+0x358/0x914 fs/namespace.c:3370
 do_mount fs/namespace.c:3383 [inline]
 __do_sys_mount fs/namespace.c:3591 [inline]
 __se_sys_mount fs/namespace.c:3568 [inline]
 __arm64_sys_mount+0x2c4/0x3c4 fs/namespace.c:3568
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall arch/arm64/kernel/syscall.c:52 [inline]
 el0_svc_common+0x138/0x220 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x48/0x164 arch/arm64/kernel/syscall.c:206
 el0_svc+0x58/0x150 arch/arm64/kernel/entry-common.c:636
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:654
 el0t_64_sync+0x18c/0x190
Code: 9002db8a 91056210 9106614a b9400329 (3942e114) 
---[ end trace 0000000000000000 ]---
----------------
Code disassembly (best guess):
   0:	9002db8a 	adrp	x10, 0x5b70000
   4:	91056210 	add	x16, x16, #0x158
   8:	9106614a 	add	x10, x10, #0x198
   c:	b9400329 	ldr	w9, [x25]
* 10:	3942e114 	ldrb	w20, [x8, #184] <-- trapping instruction


---
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-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org

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

WARNING: multiple messages have this Message-ID (diff)
From: syzbot <syzbot+79cb3895126af21042fa@syzkaller.appspotmail.com>
To: konishi.ryusuke@gmail.com, linux-kernel@vger.kernel.org,
	linux-nilfs@vger.kernel.org, syzkaller-bugs@googlegroups.com
Subject: [syzbot] WARNING: locking bug in nilfs_find_or_create_root
Date: Wed, 28 Sep 2022 10:26:48 -0700	[thread overview]
Message-ID: <000000000000cdf4e105e9c0108f@google.com> (raw)

Hello,

syzbot found the following issue on:

HEAD commit:    c194837ebb57 Merge branch 'for-next/core', remote-tracking..
git tree:       git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci
console output: https://syzkaller.appspot.com/x/log.txt?x=1135c4ff080000
kernel config:  https://syzkaller.appspot.com/x/.config?x=15a770deac0c935a
dashboard link: https://syzkaller.appspot.com/bug?extid=79cb3895126af21042fa
compiler:       Debian clang version 13.0.1-++20220126092033+75e33f71c2da-1~exp1~20220126212112.63, GNU ld (GNU Binutils for Debian) 2.35.2
userspace arch: arm64
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=1649fcdf080000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=10f24cff080000

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/8d8ae425e7fa/disk-c194837e.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/c540d501ebe7/vmlinux-c194837e.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+79cb3895126af21042fa@syzkaller.appspotmail.com

NILFS (loop0): broken superblock, retrying with spare superblock (blocksize = 1024)
------------[ cut here ]------------
DEBUG_LOCKS_WARN_ON(1)
WARNING: CPU: 0 PID: 3052 at kernel/locking/lockdep.c:231 check_wait_context kernel/locking/lockdep.c:4727 [inline]
WARNING: CPU: 0 PID: 3052 at kernel/locking/lockdep.c:231 __lock_acquire+0x2b0/0x30a4 kernel/locking/lockdep.c:5003
Modules linked in:
CPU: 0 PID: 3052 Comm: syz-executor334 Not tainted 6.0.0-rc6-syzkaller-17742-gc194837ebb57 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022
pstate: 604000c5 (nZCv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : check_wait_context kernel/locking/lockdep.c:4727 [inline]
pc : __lock_acquire+0x2b0/0x30a4 kernel/locking/lockdep.c:5003
lr : hlock_class kernel/locking/lockdep.c:231 [inline]
lr : check_wait_context kernel/locking/lockdep.c:4727 [inline]
lr : __lock_acquire+0x298/0x30a4 kernel/locking/lockdep.c:5003
sp : ffff800012763850
x29: ffff800012763930 x28: 0000000000000001 x27: ffff0000c70a3528
x26: ffff0000cb0b4300 x25: ffff0000c70a3f58 x24: 0000000000000000
x23: 0000000000000000 x22: 0000000000000001 x21: 0000000000000000
x20: 0000000000000000 x19: 5555560001430f3e x18: 00000000000000c0
x17: ffff80000dd0b198 x16: ffff80000db49158 x15: ffff0000c70a3500
x14: 0000000000000000 x13: 0000000000000012 x12: ffff80000d5ef920
x11: ff808000081c1630 x10: ffff80000dd0b198 x9 : 4ab275c465431000
x8 : 0000000000000000 x7 : 4e5241575f534b43 x6 : ffff800008195d30
x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000000
x2 : 0000000000000000 x1 : 0000000100000001 x0 : 0000000000000016
Call trace:
 check_wait_context kernel/locking/lockdep.c:4727 [inline]
 __lock_acquire+0x2b0/0x30a4 kernel/locking/lockdep.c:5003
 lock_acquire+0x100/0x1f8 kernel/locking/lockdep.c:5666
 __raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline]
 _raw_spin_lock+0x54/0x6c kernel/locking/spinlock.c:154
 spin_lock include/linux/spinlock.h:349 [inline]
 nilfs_lookup_root fs/nilfs2/the_nilfs.c:716 [inline]
 nilfs_find_or_create_root+0x34/0x310 fs/nilfs2/the_nilfs.c:743
 nilfs_attach_checkpoint+0x64/0x1c8 fs/nilfs2/super.c:519
 nilfs_fill_super+0x154/0x2f8 fs/nilfs2/super.c:1064
 nilfs_mount+0x370/0x52c fs/nilfs2/super.c:1317
 legacy_get_tree+0x30/0x74 fs/fs_context.c:610
 vfs_get_tree+0x40/0x140 fs/super.c:1530
 do_new_mount+0x1dc/0x4e4 fs/namespace.c:3040
 path_mount+0x358/0x914 fs/namespace.c:3370
 do_mount fs/namespace.c:3383 [inline]
 __do_sys_mount fs/namespace.c:3591 [inline]
 __se_sys_mount fs/namespace.c:3568 [inline]
 __arm64_sys_mount+0x2c4/0x3c4 fs/namespace.c:3568
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall arch/arm64/kernel/syscall.c:52 [inline]
 el0_svc_common+0x138/0x220 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x48/0x164 arch/arm64/kernel/syscall.c:206
 el0_svc+0x58/0x150 arch/arm64/kernel/entry-common.c:636
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:654
 el0t_64_sync+0x18c/0x190
irq event stamp: 2725
hardirqs last  enabled at (2725): [<ffff800008162680>] raw_spin_rq_unlock_irq kernel/sched/sched.h:1367 [inline]
hardirqs last  enabled at (2725): [<ffff800008162680>] finish_lock_switch+0x94/0xe8 kernel/sched/core.c:4942
hardirqs last disabled at (2724): [<ffff80000bfc3cdc>] __schedule+0x84/0x5a0 kernel/sched/core.c:6393
softirqs last  enabled at (2540): [<ffff8000080102e4>] _stext+0x2e4/0x37c
softirqs last disabled at (2523): [<ffff800008017c14>] ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:79
---[ end trace 0000000000000000 ]---
Unable to handle kernel NULL pointer dereference at virtual address 00000000000000b8
Mem abort info:
  ESR = 0x0000000096000006
  EC = 0x25: DABT (current EL), IL = 32 bits
  SET = 0, FnV = 0
  EA = 0, S1PTW = 0
  FSC = 0x06: level 2 translation fault
Data abort info:
  ISV = 0, ISS = 0x00000006
  CM = 0, WnR = 0
user pgtable: 4k pages, 48-bit VAs, pgdp=0000000107187000
[00000000000000b8] pgd=08000001097ad003, p4d=08000001097ad003, pud=080000010b0a7003, pmd=0000000000000000
Internal error: Oops: 0000000096000006 [#1] PREEMPT SMP
Modules linked in:
CPU: 0 PID: 3052 Comm: syz-executor334 Tainted: G        W          6.0.0-rc6-syzkaller-17742-gc194837ebb57 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022
pstate: 604000c5 (nZCv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : check_wait_context kernel/locking/lockdep.c:4727 [inline]
pc : __lock_acquire+0x2d0/0x30a4 kernel/locking/lockdep.c:5003
lr : hlock_class kernel/locking/lockdep.c:231 [inline]
lr : check_wait_context kernel/locking/lockdep.c:4727 [inline]
lr : __lock_acquire+0x298/0x30a4 kernel/locking/lockdep.c:5003
sp : ffff800012763850
x29: ffff800012763930 x28: 0000000000000001 x27: ffff0000c70a3528
x26: ffff0000cb0b4300 x25: ffff0000c70a3f58 x24: 0000000000000000
x23: 0000000000000000 x22: 0000000000000001 x21: 0000000000000000
x20: 0000000000000000 x19: 5555560001430f3e x18: 00000000000000c0
x17: ffff80000dd0b198 x16: ffff80000db49158 x15: ffff0000c70a3500
x14: 0000000000000000 x13: 0000000000000012 x12: ffff80000d5ef920
x11: ff808000081c1630 x10: ffff80000dd0b198 x9 : 0000000000040f3e
x8 : 0000000000000000 x7 : 4e5241575f534b43 x6 : ffff800008195d30
x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000000
x2 : 0000000000000000 x1 : 0000000100000001 x0 : 0000000000000016
Call trace:
 hlock_class kernel/locking/lockdep.c:222 [inline]
 check_wait_context kernel/locking/lockdep.c:4728 [inline]
 __lock_acquire+0x2d0/0x30a4 kernel/locking/lockdep.c:5003
 lock_acquire+0x100/0x1f8 kernel/locking/lockdep.c:5666
 __raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline]
 _raw_spin_lock+0x54/0x6c kernel/locking/spinlock.c:154
 spin_lock include/linux/spinlock.h:349 [inline]
 nilfs_lookup_root fs/nilfs2/the_nilfs.c:716 [inline]
 nilfs_find_or_create_root+0x34/0x310 fs/nilfs2/the_nilfs.c:743
 nilfs_attach_checkpoint+0x64/0x1c8 fs/nilfs2/super.c:519
 nilfs_fill_super+0x154/0x2f8 fs/nilfs2/super.c:1064
 nilfs_mount+0x370/0x52c fs/nilfs2/super.c:1317
 legacy_get_tree+0x30/0x74 fs/fs_context.c:610
 vfs_get_tree+0x40/0x140 fs/super.c:1530
 do_new_mount+0x1dc/0x4e4 fs/namespace.c:3040
 path_mount+0x358/0x914 fs/namespace.c:3370
 do_mount fs/namespace.c:3383 [inline]
 __do_sys_mount fs/namespace.c:3591 [inline]
 __se_sys_mount fs/namespace.c:3568 [inline]
 __arm64_sys_mount+0x2c4/0x3c4 fs/namespace.c:3568
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall arch/arm64/kernel/syscall.c:52 [inline]
 el0_svc_common+0x138/0x220 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x48/0x164 arch/arm64/kernel/syscall.c:206
 el0_svc+0x58/0x150 arch/arm64/kernel/entry-common.c:636
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:654
 el0t_64_sync+0x18c/0x190
Code: 9002db8a 91056210 9106614a b9400329 (3942e114) 
---[ end trace 0000000000000000 ]---
----------------
Code disassembly (best guess):
   0:	9002db8a 	adrp	x10, 0x5b70000
   4:	91056210 	add	x16, x16, #0x158
   8:	9106614a 	add	x10, x10, #0x198
   c:	b9400329 	ldr	w9, [x25]
* 10:	3942e114 	ldrb	w20, [x8, #184] <-- trapping instruction


---
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@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

             reply	other threads:[~2022-09-28 17:26 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-09-28 17:26 syzbot [this message]
2022-09-28 17:26 ` [syzbot] WARNING: locking bug in nilfs_find_or_create_root syzbot
     [not found] ` <000000000000cdf4e105e9c0108f-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>
2022-10-02  7:18   ` Ryusuke Konishi
2022-10-02  7:18     ` Ryusuke Konishi

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