syzbot


kernel BUG in txUpdateMap

Status: upstream: reported on 2024/05/25 23:09
Subsystems: jfs
[Documentation on labels]
Reported-by: syzbot+0a8a0b1abad0363db585@syzkaller.appspotmail.com
First crash: 34d, last: 27d
Discussions (1)
Title Replies (including bot) Last reply
[syzbot] [jfs?] kernel BUG in txUpdateMap 0 (1) 2024/05/25 23:09

Sample crash report:
BUG at fs/jfs/jfs_txnmgr.c:2340 assert(mp->nohomeok == 1)
------------[ cut here ]------------
kernel BUG at fs/jfs/jfs_txnmgr.c:2340!
Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI
CPU: 1 PID: 135 Comm: jfsCommit Not tainted 6.10.0-rc1-syzkaller-00021-ge0cce98fe279 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:txUpdateMap+0xc8b/0xd20 fs/jfs/jfs_txnmgr.c:2340
Code: e9 5c f9 ff ff e8 75 35 83 fe 48 c7 c1 c0 f7 6a 8b ba 24 09 00 00 48 c7 c6 40 eb 6a 8b 48 c7 c7 80 eb 6a 8b e8 86 d1 63 fe 90 <0f> 0b 48 89 df e8 bb 67 e0 fe e9 e1 f8 ff ff e8 71 68 e0 fe e9 a8
RSP: 0018:ffffc900027b7ce0 EFLAGS: 00010286
RAX: 0000000000000039 RBX: ffff888058deaf30 RCX: ffffffff816f3159
RDX: 0000000000000000 RSI: ffffffff816fbd56 RDI: 0000000000000005
RBP: 0000000000000002 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000080000000 R11: 0000000000000000 R12: ffffc9000231a3f0
R13: 0000000000000001 R14: ffffc9000231a3f4 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff88802c100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c001b7e000 CR3: 00000000546e8000 CR4: 0000000000350ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 txLazyCommit fs/jfs/jfs_txnmgr.c:2664 [inline]
 jfs_lazycommit+0x5e6/0xb20 fs/jfs/jfs_txnmgr.c:2733
 kthread+0x2c1/0x3a0 kernel/kthread.c:389
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:txUpdateMap+0xc8b/0xd20 fs/jfs/jfs_txnmgr.c:2340
Code: e9 5c f9 ff ff e8 75 35 83 fe 48 c7 c1 c0 f7 6a 8b ba 24 09 00 00 48 c7 c6 40 eb 6a 8b 48 c7 c7 80 eb 6a 8b e8 86 d1 63 fe 90 <0f> 0b 48 89 df e8 bb 67 e0 fe e9 e1 f8 ff ff e8 71 68 e0 fe e9 a8
RSP: 0018:ffffc900027b7ce0 EFLAGS: 00010286
RAX: 0000000000000039 RBX: ffff888058deaf30 RCX: ffffffff816f3159
RDX: 0000000000000000 RSI: ffffffff816fbd56 RDI: 0000000000000005
RBP: 0000000000000002 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000080000000 R11: 0000000000000000 R12: ffffc9000231a3f0
R13: 0000000000000001 R14: ffffc9000231a3f4 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff88802c100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c001b7e000 CR3: 0000000029cfe000 CR4: 0000000000350ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400

Crashes (3):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/05/28 21:32 upstream e0cce98fe279 c2e07261 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel BUG in txUpdateMap
2024/05/27 19:20 upstream 2bfcfd584ff5 c2e07261 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel BUG in txUpdateMap
2024/05/21 22:57 upstream 2a8120d7b482 c2e07261 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel BUG in txUpdateMap
* Struck through repros no longer work on HEAD.