loop7: detected capacity change from 0 to 32768
BUG at fs/jfs/jfs_txnmgr.c:662 assert(last)
------------[ cut here ]------------
kernel BUG at fs/jfs/jfs_txnmgr.c:662!
Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP
Modules linked in:
CPU: 0 PID: 10547 Comm: syz.7.1446 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026
pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
pc : txLock+0x1694/0x1828 fs/jfs/jfs_txnmgr.c:662
lr : txLock+0x1694/0x1828 fs/jfs/jfs_txnmgr.c:662
sp : ffff800023517070
x29: ffff8000235170a0 x28: 1ffff00004017400 x27: 0000000000000048
x26: 0000000000000000 x25: 0000000000000000 x24: 000000000000000e
x23: ffff8000200ba000 x22: ffff8000200ba000 x21: 0000000000000007
x20: ffff8000200ba3f0 x19: dfff800000000000 x18: ffff800011babf60
x17: 0000000000000000 x16: ffff800011a529a8 x15: 0000000000000002
x14: 0000000000000001 x13: 1ffff000046a2d74 x12: 0000000000080000
x11: 000000000000fded x10: ffff80002c2e8000 x9 : 261bbeede1e2bf00
x8 : 261bbeede1e2bf00 x7 : 0000000000000001 x6 : 0000000000000001
x5 : ffff800023516b38 x4 : ffff800015324ea0 x3 : ffff80000a893cf0
x2 : ffff00019f4fbd10 x1 : 0000000100000000 x0 : 000000000000002b
Call trace:
 txLock+0x1694/0x1828 fs/jfs/jfs_txnmgr.c:662
 dtSplitRoot+0x298/0x1174 fs/jfs/jfs_dtree.c:1927
 dtSplitUp fs/jfs/jfs_dtree.c:993 [inline]
 dtInsert+0xb44/0x5720 fs/jfs/jfs_dtree.c:871
 jfs_create+0x5e4/0x920 fs/jfs/namei.c:137
 lookup_open fs/namei.c:3490 [inline]
 open_last_lookups fs/namei.c:3558 [inline]
 path_openat+0xe18/0x26bc fs/namei.c:3788
 do_filp_open+0x194/0x384 fs/namei.c:3818
 do_sys_openat2+0x134/0x3f4 fs/open.c:1320
 do_sys_open fs/open.c:1336 [inline]
 __do_sys_openat fs/open.c:1352 [inline]
 __se_sys_openat fs/open.c:1347 [inline]
 __arm64_sys_openat+0x118/0x14c fs/open.c:1347
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x290 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140
 do_el0_svc+0x58/0x130 arch/arm64/kernel/syscall.c:204
 el0_svc+0x58/0x128 arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585
Code: b00432c3 910d0063 528052c2 979d4d9b (d4210000) 
---[ end trace 0000000000000000 ]---