Extracting prog: 10m2.57099623s
Minimizing prog: 4m47.161039985s
Simplifying prog options: 2m59.435877147s
Extracting C: 48.850007308s
Simplifying C: 11m50.038231954s


extracting reproducer from 1 programs
testing a last program of every proc
single: executing 1 programs separately with timeout 30s
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$hfs-syz_mount_image$vfat
detailed listing:
executing program 0:
syz_mount_image$hfs(&(0x7f0000000080), &(0x7f0000000240)='./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00', 0x84, &(0x7f0000000000)=ANY=[], 0x8b, 0x2e3, &(0x7f0000000800)="$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")
syz_mount_image$vfat(&(0x7f00000002c0), &(0x7f00000000c0)='./bus\x00', 0x0, 0x0, 0xbe, 0x0, &(0x7f00000007c0))

program did not crash
program did not crash
single: failed to extract reproducer
single: executing 1 programs separately with timeout 1m40s
testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$hfs-syz_mount_image$vfat
detailed listing:
executing program 0:
syz_mount_image$hfs(&(0x7f0000000080), &(0x7f0000000240)='./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00', 0x84, &(0x7f0000000000)=ANY=[], 0x8b, 0x2e3, &(0x7f0000000800)="$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")
syz_mount_image$vfat(&(0x7f00000002c0), &(0x7f00000000c0)='./bus\x00', 0x0, 0x0, 0xbe, 0x0, &(0x7f00000007c0))

program crashed: kernel BUG in hfs_write_inode
single: successfully extracted reproducer
found reproducer with 2 syscalls
minimizing guilty program
testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$hfs
detailed listing:
executing program 0:
syz_mount_image$hfs(&(0x7f0000000080), &(0x7f0000000240)='./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00', 0x84, &(0x7f0000000000)=ANY=[], 0x8b, 0x2e3, &(0x7f0000000800)="$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")

program did not crash
testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$vfat
detailed listing:
executing program 0:
syz_mount_image$vfat(&(0x7f00000002c0), &(0x7f00000000c0)='./bus\x00', 0x0, 0x0, 0xbe, 0x0, &(0x7f00000007c0))

program did not crash
extracting C reproducer
testing compiled C program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$hfs-syz_mount_image$vfat
program crashed: kernel BUG in corrupted
a never seen crash title: kernel BUG in corrupted, ignore
simplifying guilty program options
testing program (duration=1m40s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$hfs-syz_mount_image$vfat
detailed listing:
executing program 0:
syz_mount_image$hfs(&(0x7f0000000080), &(0x7f0000000240)='./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00', 0x84, &(0x7f0000000000)=ANY=[], 0x8b, 0x2e3, &(0x7f0000000800)="$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")
syz_mount_image$vfat(&(0x7f00000002c0), &(0x7f00000000c0)='./bus\x00', 0x0, 0x0, 0xbe, 0x0, &(0x7f00000007c0))

program crashed: kernel BUG in hfs_write_inode
extracting C reproducer
testing compiled C program (duration=1m40s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$hfs-syz_mount_image$vfat
program crashed: kernel BUG in hfs_write_inode
simplifying C reproducer
testing compiled C program (duration=1m40s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$hfs-syz_mount_image$vfat
program crashed: kernel BUG in hfs_write_inode
testing compiled C program (duration=1m40s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$hfs-syz_mount_image$vfat
program crashed: kernel BUG in hfs_write_inode
testing compiled C program (duration=1m40s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$hfs-syz_mount_image$vfat
program crashed: kernel BUG in hfs_write_inode
testing compiled C program (duration=1m40s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$hfs-syz_mount_image$vfat
program crashed: kernel BUG in hfs_write_inode
testing compiled C program (duration=1m40s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$hfs-syz_mount_image$vfat
program crashed: kernel BUG in hfs_write_inode
testing compiled C program (duration=1m40s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$hfs-syz_mount_image$vfat
program crashed: kernel BUG in hfs_write_inode
testing program (duration=1m40s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$hfs-syz_mount_image$vfat
detailed listing:
executing program 0:
syz_mount_image$hfs(&(0x7f0000000080), &(0x7f0000000240)='./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00', 0x84, &(0x7f0000000000)=ANY=[], 0x8b, 0x2e3, &(0x7f0000000800)="$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")
syz_mount_image$vfat(&(0x7f00000002c0), &(0x7f00000000c0)='./bus\x00', 0x0, 0x0, 0xbe, 0x0, &(0x7f00000007c0))

program crashed: kernel BUG in hfs_write_inode
validation run: crashed=true
testing program (duration=1m40s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$hfs-syz_mount_image$vfat
detailed listing:
executing program 0:
syz_mount_image$hfs(&(0x7f0000000080), &(0x7f0000000240)='./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00', 0x84, &(0x7f0000000000)=ANY=[], 0x8b, 0x2e3, &(0x7f0000000800)="$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")
syz_mount_image$vfat(&(0x7f00000002c0), &(0x7f00000000c0)='./bus\x00', 0x0, 0x0, 0xbe, 0x0, &(0x7f00000007c0))

program crashed: kernel BUG in hfs_write_inode
validation run: crashed=true
testing program (duration=1m40s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$hfs-syz_mount_image$vfat
detailed listing:
executing program 0:
syz_mount_image$hfs(&(0x7f0000000080), &(0x7f0000000240)='./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00', 0x84, &(0x7f0000000000)=ANY=[], 0x8b, 0x2e3, &(0x7f0000000800)="$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")
syz_mount_image$vfat(&(0x7f00000002c0), &(0x7f00000000c0)='./bus\x00', 0x0, 0x0, 0xbe, 0x0, &(0x7f00000007c0))

program crashed: kernel BUG in hfs_write_inode
validation run: crashed=true
reproducing took 35m53.385185231s
repro crashed as (corrupted=false):
------------[ cut here ]------------
kernel BUG at fs/hfs/inode.c:476!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 0 UID: 0 PID: 3313 Comm: kworker/u8:17 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
Workqueue: writeback wb_workfn (flush-7:0)
RIP: 0010:hfs_write_inode+0x95e/0x990 fs/hfs/inode.c:476
Code: 89 de 81 e6 00 00 00 40 31 ff e8 5d 73 19 ff 81 e3 00 00 00 40 75 15 e8 a0 6e 19 ff 4c 89 f3 e9 b1 f7 ff ff e8 93 6e 19 ff 90 <0f> 0b e8 8b 6e 19 ff e8 76 fd 85 fe eb e4 44 89 e1 80 e1 07 80 c1
RSP: 0018:ffffc9000f1e71a0 EFLAGS: 00010293
RAX: ffffffff82ac599d RBX: f8f8f8f8f8f8f8f8 RCX: ffff8880330ddd00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc9000f1e7328 R08: ffff8880330ddd00 R09: 0000000000000003
R10: 0000000000000100 R11: 0000000000000004 R12: 0000000000000000
R13: dffffc0000000000 R14: ffff88803756bbb8 R15: 1ffff92001e3ce38
FS:  0000000000000000(0000) GS:ffff888125c46000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005555954a5a28 CR3: 0000000021ff2000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 write_inode fs/fs-writeback.c:1607 [inline]
 __writeback_single_inode+0x6af/0xf90 fs/fs-writeback.c:1850
 writeback_sb_inodes+0x9db/0x1ab0 fs/fs-writeback.c:2079
 wb_writeback+0x41c/0xad0 fs/fs-writeback.c:2264
 wb_do_writeback fs/fs-writeback.c:2432 [inline]
 wb_workfn+0x437/0x10f0 fs/fs-writeback.c:2477
 process_one_work kernel/workqueue.c:3322 [inline]
 process_scheduled_works+0xa8e/0x14e0 kernel/workqueue.c:3405
 worker_thread+0xa47/0xfb0 kernel/workqueue.c:3486
 kthread+0x388/0x470 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:hfs_write_inode+0x95e/0x990 fs/hfs/inode.c:476
Code: 89 de 81 e6 00 00 00 40 31 ff e8 5d 73 19 ff 81 e3 00 00 00 40 75 15 e8 a0 6e 19 ff 4c 89 f3 e9 b1 f7 ff ff e8 93 6e 19 ff 90 <0f> 0b e8 8b 6e 19 ff e8 76 fd 85 fe eb e4 44 89 e1 80 e1 07 80 c1
RSP: 0018:ffffc9000f1e71a0 EFLAGS: 00010293
RAX: ffffffff82ac599d RBX: f8f8f8f8f8f8f8f8 RCX: ffff8880330ddd00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc9000f1e7328 R08: ffff8880330ddd00 R09: 0000000000000003
R10: 0000000000000100 R11: 0000000000000004 R12: 0000000000000000
R13: dffffc0000000000 R14: ffff88803756bbb8 R15: 1ffff92001e3ce38
FS:  0000000000000000(0000) GS:ffff888125c46000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005555954a5a28 CR3: 0000000021ff2000 CR4: 00000000003526f0

final repro crashed as (corrupted=false):
------------[ cut here ]------------
kernel BUG at fs/hfs/inode.c:476!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 0 UID: 0 PID: 3313 Comm: kworker/u8:17 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
Workqueue: writeback wb_workfn (flush-7:0)
RIP: 0010:hfs_write_inode+0x95e/0x990 fs/hfs/inode.c:476
Code: 89 de 81 e6 00 00 00 40 31 ff e8 5d 73 19 ff 81 e3 00 00 00 40 75 15 e8 a0 6e 19 ff 4c 89 f3 e9 b1 f7 ff ff e8 93 6e 19 ff 90 <0f> 0b e8 8b 6e 19 ff e8 76 fd 85 fe eb e4 44 89 e1 80 e1 07 80 c1
RSP: 0018:ffffc9000f1e71a0 EFLAGS: 00010293
RAX: ffffffff82ac599d RBX: f8f8f8f8f8f8f8f8 RCX: ffff8880330ddd00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc9000f1e7328 R08: ffff8880330ddd00 R09: 0000000000000003
R10: 0000000000000100 R11: 0000000000000004 R12: 0000000000000000
R13: dffffc0000000000 R14: ffff88803756bbb8 R15: 1ffff92001e3ce38
FS:  0000000000000000(0000) GS:ffff888125c46000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005555954a5a28 CR3: 0000000021ff2000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 write_inode fs/fs-writeback.c:1607 [inline]
 __writeback_single_inode+0x6af/0xf90 fs/fs-writeback.c:1850
 writeback_sb_inodes+0x9db/0x1ab0 fs/fs-writeback.c:2079
 wb_writeback+0x41c/0xad0 fs/fs-writeback.c:2264
 wb_do_writeback fs/fs-writeback.c:2432 [inline]
 wb_workfn+0x437/0x10f0 fs/fs-writeback.c:2477
 process_one_work kernel/workqueue.c:3322 [inline]
 process_scheduled_works+0xa8e/0x14e0 kernel/workqueue.c:3405
 worker_thread+0xa47/0xfb0 kernel/workqueue.c:3486
 kthread+0x388/0x470 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:hfs_write_inode+0x95e/0x990 fs/hfs/inode.c:476
Code: 89 de 81 e6 00 00 00 40 31 ff e8 5d 73 19 ff 81 e3 00 00 00 40 75 15 e8 a0 6e 19 ff 4c 89 f3 e9 b1 f7 ff ff e8 93 6e 19 ff 90 <0f> 0b e8 8b 6e 19 ff e8 76 fd 85 fe eb e4 44 89 e1 80 e1 07 80 c1
RSP: 0018:ffffc9000f1e71a0 EFLAGS: 00010293
RAX: ffffffff82ac599d RBX: f8f8f8f8f8f8f8f8 RCX: ffff8880330ddd00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc9000f1e7328 R08: ffff8880330ddd00 R09: 0000000000000003
R10: 0000000000000100 R11: 0000000000000004 R12: 0000000000000000
R13: dffffc0000000000 R14: ffff88803756bbb8 R15: 1ffff92001e3ce38
FS:  0000000000000000(0000) GS:ffff888125c46000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005555954a5a28 CR3: 0000000021ff2000 CR4: 00000000003526f0