BUG at fs/jfs/jfs_logmgr.c:2303 assert(bp->l_flag & lbmRELEASE) ------------[ cut here ]------------ kernel BUG at fs/jfs/jfs_logmgr.c:2303! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI CPU: 1 PID: 28 Comm: kworker/u8:2 Not tainted 6.9.0-rc2-next-20240405-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 Workqueue: loop1 loop_workfn RIP: 0010:lbmIODone+0x16fa/0x1750 fs/jfs/jfs_logmgr.c:2303 Code: 57 08 90 0f 0b e8 26 37 6c fe 48 c7 c7 40 a0 02 8c 48 c7 c6 40 9b 02 8c ba ff 08 00 00 48 c7 c1 a0 a9 02 8c e8 77 54 57 08 90 <0f> 0b e8 ff 36 6c fe 48 c7 c7 40 a0 02 8c 48 c7 c6 40 9b 02 8c ba RSP: 0000:ffffc90000a08c80 EFLAGS: 00010046 RAX: 000000000000003f RBX: 0000000000000020 RCX: 39800dd209477100 RDX: 0000000000000102 RSI: 0000000000000102 RDI: 0000000000000000 RBP: ffff888067663608 R08: ffffffff81762ecc R09: 1ffff92000141130 R10: dffffc0000000000 R11: fffff52000141131 R12: dffffc0000000000 R13: ffff888067663600 R14: ffff888028d7aa78 R15: 0000000000000246 FS: 0000000000000000(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fb1394a3000 CR3: 0000000023404000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: req_bio_endio block/blk-mq.c:787 [inline] blk_update_request+0x545/0x1020 block/blk-mq.c:932 blk_mq_end_request+0x3e/0x70 block/blk-mq.c:1055 blk_complete_reqs block/blk-mq.c:1130 [inline] blk_done_softirq+0x100/0x150 block/blk-mq.c:1135 __do_softirq+0x2c6/0x980 kernel/softirq.c:554 invoke_softirq kernel/softirq.c:428 [inline] __irq_exit_rcu+0xf2/0x1c0 kernel/softirq.c:633 irq_exit_rcu+0x9/0x30 kernel/softirq.c:645 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline] sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1043 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:raise_softirq+0x154/0x1b0 kernel/softirq.c:690 Code: 24 20 42 80 3c 23 00 74 08 4c 89 f7 e8 15 c7 a0 00 f6 44 24 21 02 75 4b 41 f7 c7 00 02 00 00 74 01 fb 48 c7 04 24 0e 36 e0 45 <4b> c7 04 2c 00 00 00 00 66 43 c7 44 2c 09 00 00 43 c6 44 2c 0b 00 RSP: 0000:ffffc90000a47800 EFLAGS: 00000206 RAX: 39800dd209477100 RBX: 1ffff92000148f04 RCX: ffffffff817277aa RDX: dffffc0000000000 RSI: ffffffff8bcad640 RDI: ffffffff8c1f9f60 RBP: ffffc90000a478a8 R08: ffffffff92f73617 R09: 1ffffffff25ee6c2 R10: dffffc0000000000 R11: fffffbfff25ee6c3 R12: dffffc0000000000 R13: 1ffff92000148f00 R14: ffffc90000a47820 R15: 0000000000000246 blk_mq_raise_softirq block/blk-mq.c:1192 [inline] blk_mq_complete_request_remote+0x546/0x740 block/blk-mq.c:1216 blk_mq_complete_request+0x19/0xa0 block/blk-mq.c:1232 loop_handle_cmd drivers/block/loop.c:1924 [inline] loop_process_work+0x1970/0x1e60 drivers/block/loop.c:1942 process_one_work kernel/workqueue.c:3218 [inline] process_scheduled_works+0xa2c/0x1830 kernel/workqueue.c:3299 worker_thread+0x86d/0xd70 kernel/workqueue.c:3380 kthread+0x2f0/0x390 kernel/kthread.c:388 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:lbmIODone+0x16fa/0x1750 fs/jfs/jfs_logmgr.c:2303 Code: 57 08 90 0f 0b e8 26 37 6c fe 48 c7 c7 40 a0 02 8c 48 c7 c6 40 9b 02 8c ba ff 08 00 00 48 c7 c1 a0 a9 02 8c e8 77 54 57 08 90 <0f> 0b e8 ff 36 6c fe 48 c7 c7 40 a0 02 8c 48 c7 c6 40 9b 02 8c ba RSP: 0000:ffffc90000a08c80 EFLAGS: 00010046 RAX: 000000000000003f RBX: 0000000000000020 RCX: 39800dd209477100 RDX: 0000000000000102 RSI: 0000000000000102 RDI: 0000000000000000 RBP: ffff888067663608 R08: ffffffff81762ecc R09: 1ffff92000141130 R10: dffffc0000000000 R11: fffff52000141131 R12: dffffc0000000000 R13: ffff888067663600 R14: ffff888028d7aa78 R15: 0000000000000246 FS: 0000000000000000(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fb1394a3000 CR3: 0000000023404000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 24 20 and $0x20,%al 2: 42 80 3c 23 00 cmpb $0x0,(%rbx,%r12,1) 7: 74 08 je 0x11 9: 4c 89 f7 mov %r14,%rdi c: e8 15 c7 a0 00 call 0xa0c726 11: f6 44 24 21 02 testb $0x2,0x21(%rsp) 16: 75 4b jne 0x63 18: 41 f7 c7 00 02 00 00 test $0x200,%r15d 1f: 74 01 je 0x22 21: fb sti 22: 48 c7 04 24 0e 36 e0 movq $0x45e0360e,(%rsp) 29: 45 * 2a: 4b c7 04 2c 00 00 00 movq $0x0,(%r12,%r13,1) <-- trapping instruction 31: 00 32: 66 43 c7 44 2c 09 00 movw $0x0,0x9(%r12,%r13,1) 39: 00 3a: 43 c6 44 2c 0b 00 movb $0x0,0xb(%r12,%r13,1)