lbmIODone: I/O error in JFS log *** Log Format Error ! *** lmLogInit: exit(-22) lmLogOpen: exit(-22) jfs_dirty_inode called on read-only volume Is remount racy? Unable to handle kernel paging request at virtual address dfff800000000008 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 [dfff800000000008] address between user and kernel address ranges Internal error: Oops: 0000000096000006 [#1] PREEMPT SMP Modules linked in: CPU: 1 PID: 4953 Comm: syz.4.190 Not tainted 5.15.180-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : arch_test_bit include/asm-generic/bitops/non-atomic.h:118 [inline] pc : txBeginAnon+0xac/0x154 fs/jfs/jfs_txnmgr.c:465 lr : spin_lock include/linux/spinlock.h:363 [inline] lr : txBeginAnon+0x78/0x154 fs/jfs/jfs_txnmgr.c:458 sp : ffff800020287480 x29: ffff800020287480 x28: ffff80001aee5e68 x27: ffff80001aee5000 x26: ffff80001aee5000 x25: 0000000000000008 x24: 0000000000000150 x23: dfff800000000000 x22: 0000000000000001 x21: 0000000000000000 x20: 0000000000000040 x19: ffff8000146bae00 x18: 0000000000000000 x17: ffff800016cde000 x16: ffff8000082d4dc8 x15: ffff8000167be4c0 x14: ffff0000dcee4080 x13: dfff800000000000 x12: ffff700004050e74 x11: 1ffff00004050e74 x10: 0000000000000004 x9 : 5136106dae966200 x8 : 5136106dae966200 x7 : 0000000000000000 x6 : 0000000000000000 x5 : ffff800016f6b870 x4 : 0000000000000008 x3 : ffff8000082d4ee8 x2 : 0000000000000001 x1 : 0000000000000000 x0 : 0000000000000000 Call trace: spin_lock include/linux/spinlock.h:363 [inline] txBeginAnon+0xac/0x154 fs/jfs/jfs_txnmgr.c:-1 extAlloc+0xe4/0xdc4 fs/jfs/jfs_extent.c:81 jfs_get_block+0x2bc/0x8ec fs/jfs/inode.c:258 nobh_write_begin+0x2d8/0x9d4 fs/buffer.c:2650 jfs_write_begin+0x58/0xa0 fs/jfs/inode.c:322 generic_perform_write+0x204/0x480 mm/filemap.c:3785 __generic_file_write_iter+0x23c/0x454 mm/filemap.c:3912 generic_file_write_iter+0xb0/0x1b4 mm/filemap.c:3944 call_write_iter include/linux/fs.h:2172 [inline] new_sync_write fs/read_write.c:507 [inline] vfs_write+0x7c8/0xa2c fs/read_write.c:594 ksys_write+0x120/0x210 fs/read_write.c:647 __do_sys_write fs/read_write.c:659 [inline] __se_sys_write fs/read_write.c:656 [inline] __arm64_sys_write+0x7c/0x90 fs/read_write.c:656 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x78/0x1e0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 Code: aa1803e0 97ffff75 aa1303e0 95ea8965 (38776b28) ---[ end trace 521bcd5e093773b2 ]--- ---------------- Code disassembly (best guess): 0: aa1803e0 mov x0, x24 4: 97ffff75 bl 0xfffffffffffffdd8 8: aa1303e0 mov x0, x19 c: 95ea8965 bl 0x7aa25a0 * 10: 38776b28 ldrb w8, [x25, x23] <-- trapping instruction