loop1: detected capacity change from 0 to 32768
BUG at fs/jfs/jfs_dmap.c:3013 assert(nb <= DBWORD)
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kernel BUG at fs/jfs/jfs_dmap.c:3013!
Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP
Modules linked in:
CPU: 1 PID: 25412 Comm: syz-executor.1 Not tainted 6.1.81-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024
pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : dbFindBits+0x1b8/0x1e4 fs/jfs/jfs_dmap.c:3013
lr : dbFindBits+0x1b8/0x1e4 fs/jfs/jfs_dmap.c:3013
sp : ffff80001f1f7750
x29: ffff80001f1f7750 x28: 00000000ffffffff x27: 1ffff00003e3eef4
x26: dfff800000000000 x25: ffff00012c5ef800 x24: 000000000000000a
x23: 0000000000000000 x22: ffff0000ded83000 x21: 00000000ffffffff
x20: 0000000000000400 x19: 000000000000000a x18: ffff80001f1f6ca0
x17: 0000000000000000 x16: ffff800012149a4c x15: 0000000000000002
x14: 00000000ffffffff x13: fffffffffffe2718 x12: 0000000000040000
x11: 000000000000d706 x10: ffff800020559000 x9 : e98c868cc67eb000
x8 : e98c868cc67eb000 x7 : fffffffffffe2718 x6 : fffffffffffe26d0
x5 : ffff80001f1f7058 x4 : ffff8000158eea80 x3 : ffff80000aa8aa0c
x2 : ffff0001b437ecd0 x1 : 0000000100000000 x0 : 0000000000000032
Call trace:
 dbFindBits+0x1b8/0x1e4 fs/jfs/jfs_dmap.c:3013
 dbAllocDmapLev+0x194/0x414 fs/jfs/jfs_dmap.c:1983
 dbAllocCtl+0x104/0x844 fs/jfs/jfs_dmap.c:1823
 dbAllocAG+0x208/0xe4c fs/jfs/jfs_dmap.c:1364
 dbDiscardAG+0x240/0x728 fs/jfs/jfs_dmap.c:1613
 jfs_ioc_trim+0x3cc/0x5d8 fs/jfs/jfs_discard.c:100
 jfs_ioctl+0x338/0x550 fs/jfs/ioctl.c:131
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:870 [inline]
 __se_sys_ioctl fs/ioctl.c:856 [inline]
 __arm64_sys_ioctl+0x14c/0x1c8 fs/ioctl.c:856
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:206
 el0_svc+0x58/0x168 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: b0046323 91398063 528178a2 95962e32 (d4210000) 
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