Extracting prog: 2m47.596642458s
Minimizing prog: 18m13.011867933s
Simplifying prog options: 0s
Extracting C: 1m6.395088682s
Simplifying C: 11m35.548588637s


extracting reproducer from 1 programs
testing a last program of every proc
single: executing 1 programs separately with timeout 6m0s
testing program (duration=6m0s, {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}}): openat$ttyS3-ioctl$TIOCSETD-mmap-socketpair$unix-sendmmsg$unix-bpf$PROG_LOAD-bpf$PROG_LOAD
detailed listing:
executing program 0:
r0 = openat$ttyS3(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
ioctl$TIOCSETD(r0, 0x5423, &(0x7f0000000540)=0x14)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeee, 0x8031, 0xffffffffffffffff, 0x0)
socketpair$unix(0x1, 0x2, 0x0, 0x0)
sendmmsg$unix(0xffffffffffffffff, 0x0, 0x0, 0x0)
bpf$PROG_LOAD(0x5, 0x0, 0x0)
bpf$PROG_LOAD(0x5, 0x0, 0x0)

program crashed: BUG: soft lockup in tx
single: successfully extracted reproducer
found reproducer with 7 syscalls
minimizing guilty program
testing program (duration=2m31.028398438s, {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}}): openat$ttyS3-ioctl$TIOCSETD-mmap-socketpair$unix-sendmmsg$unix-bpf$PROG_LOAD
detailed listing:
executing program 0:
r0 = openat$ttyS3(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
ioctl$TIOCSETD(r0, 0x5423, &(0x7f0000000540)=0x14)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeee, 0x8031, 0xffffffffffffffff, 0x0)
socketpair$unix(0x1, 0x2, 0x0, 0x0)
sendmmsg$unix(0xffffffffffffffff, 0x0, 0x0, 0x0)
bpf$PROG_LOAD(0x5, 0x0, 0x0)

program crashed: BUG: soft lockup in ser_release
testing program (duration=2m31.028398438s, {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}}): openat$ttyS3-ioctl$TIOCSETD-mmap-socketpair$unix-sendmmsg$unix
detailed listing:
executing program 0:
r0 = openat$ttyS3(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
ioctl$TIOCSETD(r0, 0x5423, &(0x7f0000000540)=0x14)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeee, 0x8031, 0xffffffffffffffff, 0x0)
socketpair$unix(0x1, 0x2, 0x0, 0x0)
sendmmsg$unix(0xffffffffffffffff, 0x0, 0x0, 0x0)

program crashed: BUG: soft lockup in tx
testing program (duration=2m31.028398438s, {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}}): openat$ttyS3-ioctl$TIOCSETD-mmap-socketpair$unix
detailed listing:
executing program 0:
r0 = openat$ttyS3(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
ioctl$TIOCSETD(r0, 0x5423, &(0x7f0000000540)=0x14)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeee, 0x8031, 0xffffffffffffffff, 0x0)
socketpair$unix(0x1, 0x2, 0x0, 0x0)

program crashed: BUG: soft lockup in tx
testing program (duration=2m31.028398438s, {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}}): openat$ttyS3-ioctl$TIOCSETD-mmap
detailed listing:
executing program 0:
r0 = openat$ttyS3(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
ioctl$TIOCSETD(r0, 0x5423, &(0x7f0000000540)=0x14)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeee, 0x8031, 0xffffffffffffffff, 0x0)

program crashed: BUG: soft lockup in ser_release
testing program (duration=2m31.028398438s, {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}}): openat$ttyS3-ioctl$TIOCSETD
detailed listing:
executing program 0:
r0 = openat$ttyS3(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
ioctl$TIOCSETD(r0, 0x5423, &(0x7f0000000540)=0x14)

program did not crash
testing program (duration=2m31.028398438s, {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}}): openat$ttyS3-mmap
detailed listing:
executing program 0:
openat$ttyS3(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeee, 0x8031, 0xffffffffffffffff, 0x0)

program did not crash
testing program (duration=2m31.028398438s, {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}}): ioctl$TIOCSETD-mmap
detailed listing:
executing program 0:
ioctl$TIOCSETD(0xffffffffffffffff, 0x5423, &(0x7f0000000540)=0x14)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeee, 0x8031, 0xffffffffffffffff, 0x0)

program did not crash
testing program (duration=2m31.028398438s, {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}}): openat$ttyS3-ioctl$TIOCSETD-mmap
detailed listing:
executing program 0:
r0 = openat$ttyS3(0xffffffffffffff9c, 0x0, 0x0, 0x0)
ioctl$TIOCSETD(r0, 0x5423, &(0x7f0000000540)=0x14)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeee, 0x8031, 0xffffffffffffffff, 0x0)

program did not crash
testing program (duration=2m31.028398438s, {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}}): openat$ttyS3-ioctl$TIOCSETD-mmap
detailed listing:
executing program 0:
r0 = openat$ttyS3(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
ioctl$TIOCSETD(r0, 0x5423, 0x0)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeee, 0x8031, 0xffffffffffffffff, 0x0)

program did not crash
extracting C reproducer
testing compiled C program (duration=2m31.028398438s, {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}}): openat$ttyS3-ioctl$TIOCSETD-mmap
program crashed: BUG: soft lockup in tx
simplifying C reproducer
testing compiled C program (duration=2m31.028398438s, {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}}): openat$ttyS3-ioctl$TIOCSETD-mmap
program crashed: BUG: soft lockup in tx
testing compiled C program (duration=2m31.028398438s, {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}}): openat$ttyS3-ioctl$TIOCSETD-mmap
program did not crash
testing compiled C program (duration=2m31.028398438s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 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}}): openat$ttyS3-ioctl$TIOCSETD-mmap
program crashed: BUG: soft lockup in tx
testing compiled C program (duration=2m31.028398438s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 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}}): openat$ttyS3-ioctl$TIOCSETD-mmap
program crashed: BUG: soft lockup in tx
testing compiled C program (duration=2m31.028398438s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 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}}): openat$ttyS3-ioctl$TIOCSETD-mmap
program crashed: BUG: soft lockup in tx
testing compiled C program (duration=2m31.028398438s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 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}}): openat$ttyS3-ioctl$TIOCSETD-mmap
program crashed: BUG: soft lockup in ser_release
testing compiled C program (duration=2m31.028398438s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 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}}): openat$ttyS3-ioctl$TIOCSETD-mmap
program crashed: BUG: soft lockup in tx
testing program (duration=2m31.028398438s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 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}}): openat$ttyS3-ioctl$TIOCSETD-mmap
detailed listing:
executing program 0:
r0 = openat$ttyS3(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
ioctl$TIOCSETD(r0, 0x5423, &(0x7f0000000540)=0x14)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeee, 0x8031, 0xffffffffffffffff, 0x0)

program crashed: BUG: soft lockup in tx
validation run: crashed=true
testing program (duration=2m31.028398438s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 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}}): openat$ttyS3-ioctl$TIOCSETD-mmap
detailed listing:
executing program 0:
r0 = openat$ttyS3(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
ioctl$TIOCSETD(r0, 0x5423, &(0x7f0000000540)=0x14)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeee, 0x8031, 0xffffffffffffffff, 0x0)

program did not crash
validation run: crashed=false
testing program (duration=2m31.028398438s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 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}}): openat$ttyS3-ioctl$TIOCSETD-mmap
detailed listing:
executing program 0:
r0 = openat$ttyS3(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
ioctl$TIOCSETD(r0, 0x5423, &(0x7f0000000540)=0x14)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeee, 0x8031, 0xffffffffffffffff, 0x0)

program crashed: BUG: soft lockup in ser_release
validation run: crashed=true
testing program (duration=2m31.028398438s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 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}}): openat$ttyS3-ioctl$TIOCSETD-mmap
detailed listing:
executing program 0:
r0 = openat$ttyS3(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
ioctl$TIOCSETD(r0, 0x5423, &(0x7f0000000540)=0x14)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeee, 0x8031, 0xffffffffffffffff, 0x0)

program crashed: BUG: soft lockup in tx
validation run: crashed=true
reproducing took 40m43.95530083s
repro crashed as (corrupted=false):
watchdog: BUG: soft lockup - CPU#1 stuck for 23s! [aoe_tx0:2066]
Modules linked in:
irq event stamp: 66175047
hardirqs last  enabled at (66175046): [<ffff800011c9da4c>] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline]
hardirqs last  enabled at (66175046): [<ffff800011c9da4c>] _raw_spin_unlock_irqrestore+0x48/0xac kernel/locking/spinlock.c:194
hardirqs last disabled at (66175047): [<ffff800011bb2924>] __el1_irq arch/arm64/kernel/entry-common.c:468 [inline]
hardirqs last disabled at (66175047): [<ffff800011bb2924>] el1_interrupt+0x24/0x54 arch/arm64/kernel/entry-common.c:486
softirqs last  enabled at (1028): [<ffff80000ff14cd8>] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32
softirqs last disabled at (1032): [<ffff80000ff14ca4>] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19
CPU: 1 PID: 2066 Comm: aoe_tx0 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026
pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
pc : __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
pc : _raw_spin_unlock_irqrestore+0x58/0xac kernel/locking/spinlock.c:194
lr : __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline]
lr : _raw_spin_unlock_irqrestore+0x48/0xac kernel/locking/spinlock.c:194
sp : ffff800026dc7890
x29: ffff800026dc7890 x28: 1fffe0001b33d996 x27: 1fffe0001ab60eae
x26: ffff0000d99eccb0 x25: dfff800000000000 x24: 0000000000000020
x23: 0000000000000000 x22: 0000000000000000 x21: dfff800000000000
x20: ffff80001c971d10 x19: 0000000000000000 x18: 1fffe00033e6db7e
x17: ffff80000feb097c x16: ffff8000082dd284 x15: 000000000004ffff
x14: 0000000000000001 x13: 1ffff0000392e3a2 x12: 0000000000000000
x11: ff0080000a97ca20 x10: 0000000000000003 x9 : 0000000000000080
x8 : 00000000000000c0 x7 : ffff80000b470d70 x6 : 0000000000000000
x5 : 0000000000000080 x4 : 0000000000000001 x3 : 0000000000000000
x2 : 0000000000000002 x1 : ffff800011d1dc80 x0 : ffff80018a057000
Call trace:
 arch_local_irq_restore arch/arm64/include/asm/irqflags.h:122 [inline]
 __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline]
 _raw_spin_unlock_irqrestore+0x58/0xac kernel/locking/spinlock.c:194
 spin_unlock_irqrestore include/linux/spinlock.h:406 [inline]
 uart_write_room+0x144/0x2d8 drivers/tty/serial/serial_core.c:614
 tty_write_room+0x6c/0x8c drivers/tty/tty_ioctl.c:80
 handle_tx+0x118/0x600 drivers/net/caif/caif_serial.c:226
 caif_xmit+0x108/0x150 drivers/net/caif/caif_serial.c:282
 __netdev_start_xmit include/linux/netdevice.h:4891 [inline]
 netdev_start_xmit include/linux/netdevice.h:4905 [inline]
 xmit_one net/core/dev.c:3695 [inline]
 dev_hard_start_xmit+0x234/0x8c8 net/core/dev.c:3711
 __dev_queue_xmit+0x1590/0x3154 net/core/dev.c:4375
 dev_queue_xmit include/linux/netdevice.h:3053 [inline]
 tx+0xa0/0x1c8 drivers/block/aoe/aoenet.c:63
 kthread+0x178/0x344 drivers/block/aoe/aoecmd.c:1241
 kthread+0x254/0x2e0 kernel/kthread.c:376
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850

final repro crashed as (corrupted=false):
watchdog: BUG: soft lockup - CPU#1 stuck for 23s! [aoe_tx0:2066]
Modules linked in:
irq event stamp: 66175047
hardirqs last  enabled at (66175046): [<ffff800011c9da4c>] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline]
hardirqs last  enabled at (66175046): [<ffff800011c9da4c>] _raw_spin_unlock_irqrestore+0x48/0xac kernel/locking/spinlock.c:194
hardirqs last disabled at (66175047): [<ffff800011bb2924>] __el1_irq arch/arm64/kernel/entry-common.c:468 [inline]
hardirqs last disabled at (66175047): [<ffff800011bb2924>] el1_interrupt+0x24/0x54 arch/arm64/kernel/entry-common.c:486
softirqs last  enabled at (1028): [<ffff80000ff14cd8>] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32
softirqs last disabled at (1032): [<ffff80000ff14ca4>] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19
CPU: 1 PID: 2066 Comm: aoe_tx0 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026
pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
pc : __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
pc : _raw_spin_unlock_irqrestore+0x58/0xac kernel/locking/spinlock.c:194
lr : __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline]
lr : _raw_spin_unlock_irqrestore+0x48/0xac kernel/locking/spinlock.c:194
sp : ffff800026dc7890
x29: ffff800026dc7890 x28: 1fffe0001b33d996 x27: 1fffe0001ab60eae
x26: ffff0000d99eccb0 x25: dfff800000000000 x24: 0000000000000020
x23: 0000000000000000 x22: 0000000000000000 x21: dfff800000000000
x20: ffff80001c971d10 x19: 0000000000000000 x18: 1fffe00033e6db7e
x17: ffff80000feb097c x16: ffff8000082dd284 x15: 000000000004ffff
x14: 0000000000000001 x13: 1ffff0000392e3a2 x12: 0000000000000000
x11: ff0080000a97ca20 x10: 0000000000000003 x9 : 0000000000000080
x8 : 00000000000000c0 x7 : ffff80000b470d70 x6 : 0000000000000000
x5 : 0000000000000080 x4 : 0000000000000001 x3 : 0000000000000000
x2 : 0000000000000002 x1 : ffff800011d1dc80 x0 : ffff80018a057000
Call trace:
 arch_local_irq_restore arch/arm64/include/asm/irqflags.h:122 [inline]
 __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline]
 _raw_spin_unlock_irqrestore+0x58/0xac kernel/locking/spinlock.c:194
 spin_unlock_irqrestore include/linux/spinlock.h:406 [inline]
 uart_write_room+0x144/0x2d8 drivers/tty/serial/serial_core.c:614
 tty_write_room+0x6c/0x8c drivers/tty/tty_ioctl.c:80
 handle_tx+0x118/0x600 drivers/net/caif/caif_serial.c:226
 caif_xmit+0x108/0x150 drivers/net/caif/caif_serial.c:282
 __netdev_start_xmit include/linux/netdevice.h:4891 [inline]
 netdev_start_xmit include/linux/netdevice.h:4905 [inline]
 xmit_one net/core/dev.c:3695 [inline]
 dev_hard_start_xmit+0x234/0x8c8 net/core/dev.c:3711
 __dev_queue_xmit+0x1590/0x3154 net/core/dev.c:4375
 dev_queue_xmit include/linux/netdevice.h:3053 [inline]
 tx+0xa0/0x1c8 drivers/block/aoe/aoenet.c:63
 kthread+0x178/0x344 drivers/block/aoe/aoecmd.c:1241
 kthread+0x254/0x2e0 kernel/kthread.c:376
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850