WARNING in enqueue_to_backlog

------------[ cut here ]------------
raw_local_irq_restore() called with IRQs enabled
WARNING: kernel/locking/irqflag-debug.c:10 at warn_bogus_irq_restore+0xc/0x20 kernel/locking/irqflag-debug.c:10, CPU#1: aoe_tx0/1324
Modules linked in:
CPU: 1 UID: 0 PID: 1324 Comm: aoe_tx0 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
RIP: 0010:warn_bogus_irq_restore+0xc/0x20 kernel/locking/irqflag-debug.c:10
Code: cc cc cc cc cc cc cc cc cc cc cc cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 90 48 8d 3d a4 5a 4c 04 <67> 48 0f b9 3a 90 c3 cc cc cc cc cc cc cc cc cc cc cc cc cc 90 90
RSP: 0018:ffffc9000606f728 EFLAGS: 00010293
RAX: ffffffff88f413a0 RBX: 0000000000000001 RCX: ffff88802934dac0
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8f6d1d50
RBP: ffff8880b893d960 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: fffffbfff1ed3fb7 R12: ffff8880b893d978
R13: dffffc0000000000 R14: 0000000000000200 R15: ffff8880b893d958
FS:  0000000000000000(0000) GS:ffff88812644b000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005558b4b7eee8 CR3: 000000000dbba000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 backlog_unlock_irq_restore net/core/dev.c:253 [inline]
 enqueue_to_backlog+0x525/0xcf0 net/core/dev.c:5347
 netif_rx_internal+0x120/0x590 net/core/dev.c:5659
 __netif_rx+0xa9/0x110 net/core/dev.c:5679
 loopback_xmit+0x43a/0x660 drivers/net/loopback.c:90
 __netdev_start_xmit include/linux/netdevice.h:5275 [inline]
 netdev_start_xmit include/linux/netdevice.h:5284 [inline]
 xmit_one net/core/dev.c:3864 [inline]
 dev_hard_start_xmit+0x2f2/0x8b0 net/core/dev.c:3880
 __dev_queue_xmit+0x16f4/0x39e0 net/core/dev.c:4829
 dev_queue_xmit include/linux/netdevice.h:3384 [inline]
 tx+0x6b/0x190 drivers/block/aoe/aoenet.c:62
 kthread+0x1e0/0x3f0 drivers/block/aoe/aoecmd.c:1241
 kthread+0x388/0x470 kernel/kthread.c:467
 ret_from_fork+0x51e/0xb90 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
----------------
Code disassembly (best guess):
   0:	cc                   	int3
   1:	cc                   	int3
   2:	cc                   	int3
   3:	cc                   	int3
   4:	cc                   	int3
   5:	cc                   	int3
   6:	cc                   	int3
   7:	cc                   	int3
   8:	cc                   	int3
   9:	cc                   	int3
   a:	cc                   	int3
   b:	cc                   	int3
   c:	cc                   	int3
   d:	cc                   	int3
   e:	90                   	nop
   f:	90                   	nop
  10:	90                   	nop
  11:	90                   	nop
  12:	90                   	nop
  13:	90                   	nop
  14:	90                   	nop
  15:	90                   	nop
  16:	90                   	nop
  17:	90                   	nop
  18:	90                   	nop
  19:	90                   	nop
  1a:	90                   	nop
  1b:	90                   	nop
  1c:	90                   	nop
  1d:	90                   	nop
  1e:	f3 0f 1e fa          	endbr64
  22:	90                   	nop
  23:	48 8d 3d a4 5a 4c 04 	lea    0x44c5aa4(%rip),%rdi        # 0x44c5ace
* 2a:	67 48 0f b9 3a       	ud1    (%edx),%rdi <-- trapping instruction
  2f:	90                   	nop
  30:	c3                   	ret
  31:	cc                   	int3
  32:	cc                   	int3
  33:	cc                   	int3
  34:	cc                   	int3
  35:	cc                   	int3
  36:	cc                   	int3
  37:	cc                   	int3
  38:	cc                   	int3
  39:	cc                   	int3
  3a:	cc                   	int3
  3b:	cc                   	int3
  3c:	cc                   	int3
  3d:	cc                   	int3
  3e:	90                   	nop
  3f:	90                   	nop


no interfaces have a carrier
[   50.508450][ T5459] 8021q: adding VLAN 0 to HW filter on device bond0
[   50.532608][ T5459] eql: remember to turn off Van-Jacobson compression on your slave devices
Starting crond: OK
Starting sshd: OK

syzkaller
syzkaller login: [   71.465007][ T1324] ------------[ cut here ]------------
[   71.465022][ T1324] raw_local_irq_restore() called with IRQs enabled
[   71.465043][ T1324] WARNING: kernel/locking/irqflag-debug.c:10 at warn_bogus_irq_restore+0xc/0x20, CPU#1: aoe_tx0/1324
[   71.465101][ T1324] Modules linked in:
[   71.465134][ T1324] CPU: 1 UID: 0 PID: 1324 Comm: aoe_tx0 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[   71.465153][ T1324] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[   71.465167][ T1324] RIP: 0010:warn_bogus_irq_restore+0xc/0x20
[   71.465190][ T1324] Code: cc cc cc cc cc cc cc cc cc cc cc cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 90 48 8d 3d a4 5a 4c 04 <67> 48 0f b9 3a 90 c3 cc cc cc cc cc cc cc cc cc cc cc cc cc 90 90
[   71.465204][ T1324] RSP: 0018:ffffc9000606f728 EFLAGS: 00010293
[   71.465218][ T1324] RAX: ffffffff88f413a0 RBX: 0000000000000001 RCX: ffff88802934dac0
[   71.465231][ T1324] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8f6d1d50
[   71.465242][ T1324] RBP: ffff8880b893d960 R08: 0000000000000000 R09: 0000000000000000
[   71.465253][ T1324] R10: dffffc0000000000 R11: fffffbfff1ed3fb7 R12: ffff8880b893d978
[   71.465265][ T1324] R13: dffffc0000000000 R14: 0000000000000200 R15: ffff8880b893d958
[   71.465278][ T1324] FS:  0000000000000000(0000) GS:ffff88812644b000(0000) knlGS:0000000000000000
[   71.465292][ T1324] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   71.465303][ T1324] CR2: 00005558b4b7eee8 CR3: 000000000dbba000 CR4: 00000000003526f0
[   71.465317][ T1324] Call Trace:
[   71.465328][ T1324]  <TASK>
[   71.465334][ T1324]  enqueue_to_backlog+0x525/0xcf0
[   71.465370][ T1324]  netif_rx_internal+0x120/0x590
[   71.465395][ T1324]  ? __pfx_netif_rx_internal+0x10/0x10
[   71.465415][ T1324]  ? __lock_acquire+0x6b5/0x2cf0
[   71.465439][ T1324]  ? eth_type_trans+0x35e/0x6d0
[   71.465461][ T1324]  ? rcu_is_watching+0x15/0xb0
[   71.465480][ T1324]  __netif_rx+0xa9/0x110
[   71.465496][ T1324]  loopback_xmit+0x43a/0x660
[   71.465523][ T1324]  dev_hard_start_xmit+0x2f2/0x8b0
[   71.465564][ T1324]  __dev_queue_xmit+0x16f4/0x39e0
[   71.465581][ T1324]  ? sched_clock+0x3f/0x60
[   71.465610][ T1324]  ? __pfx___schedule+0x10/0x10
[   71.465630][ T1324]  ? __dev_queue_xmit+0x27d/0x39e0
[   71.465655][ T1324]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[   71.465678][ T1324]  ? __pfx___dev_queue_xmit+0x10/0x10
[   71.465699][ T1324]  ? preempt_schedule_common+0x82/0xd0
[   71.465723][ T1324]  ? preempt_schedule_thunk+0x16/0x30
[   71.465749][ T1324]  ? rt_mutex_slowunlock+0x681/0x8b0
[   71.465777][ T1324]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[   71.465800][ T1324]  ? rt_spin_unlock+0x14f/0x200
[   71.465824][ T1324]  ? rt_spin_unlock+0x160/0x200
[   71.465854][ T1324]  tx+0x6b/0x190
[   71.465869][ T1324]  ? __pfx_tx+0x10/0x10
[   71.465882][ T1324]  kthread+0x1e0/0x3f0
[   71.465909][ T1324]  ? __pfx_kthread+0x10/0x10
[   71.465929][ T1324]  ? __pfx_default_wake_function+0x10/0x10
[   71.465944][ T1324]  ? __kthread_parkme+0x7a/0x1f0
[   71.465963][ T1324]  kthread+0x388/0x470
[   71.465973][ T1324]  ? __pfx_kthread+0x10/0x10
[   71.465984][ T1324]  ? __pfx_kthread+0x10/0x10
[   71.465994][ T1324]  ret_from_fork+0x51e/0xb90
[   71.466009][ T1324]  ? __pfx_ret_from_fork+0x10/0x10
[   71.466021][ T1324]  ? __switch_to+0xc7d/0x1450
[   71.466035][ T1324]  ? __pfx_kthread+0x10/0x10
[   71.466045][ T1324]  ret_from_fork_asm+0x1a/0x30
[   71.466062][ T1324]  </TASK>
[   71.466068][ T1324] Kernel panic - not syncing: kernel: panic_on_warn set ...
[   71.466076][ T1324] CPU: 1 UID: 0 PID: 1324 Comm: aoe_tx0 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[   71.466087][ T1324] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[   71.466092][ T1324] Call Trace:
[   71.466096][ T1324]  <TASK>
[   71.466100][ T1324]  vpanic+0x56c/0xa60
[   71.466115][ T1324]  ? __pfx__printk+0x10/0x10
[   71.466125][ T1324]  ? __pfx_vpanic+0x10/0x10
[   71.466137][ T1324]  ? is_bpf_text_address+0x292/0x2b0
[   71.466150][ T1324]  ? is_bpf_text_address+0x26/0x2b0
[   71.466165][ T1324]  panic+0xc5/0xd0
[   71.466178][ T1324]  ? __pfx_panic+0x10/0x10
[   71.466196][ T1324]  ? ret_from_fork_asm+0x1a/0x30
[   71.466207][ T1324]  __warn+0x315/0x4f0
[   71.466220][ T1324]  ? warn_bogus_irq_restore+0xc/0x20
[   71.466234][ T1324]  ? warn_bogus_irq_restore+0xc/0x20
[   71.466248][ T1324]  __report_bug+0x29a/0x540
[   71.466265][ T1324]  ? warn_bogus_irq_restore+0xc/0x20
[   71.466279][ T1324]  ? __pfx___report_bug+0x10/0x10
[   71.466300][ T1324]  report_bug_entry+0x19a/0x290
[   71.466316][ T1324]  ? warn_bogus_irq_restore+0xc/0x20
[   71.466328][ T1324]  ? warn_bogus_irq_restore+0x11/0x20
[   71.466341][ T1324]  handle_bug+0xca/0x200
[   71.466351][ T1324]  exc_invalid_op+0x1a/0x50
[   71.466360][ T1324]  asm_exc_invalid_op+0x1a/0x20
[   71.466371][ T1324] RIP: 0010:warn_bogus_irq_restore+0xc/0x20
[   71.466385][ T1324] Code: cc cc cc cc cc cc cc cc cc cc cc cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 90 48 8d 3d a4 5a 4c 04 <67> 48 0f b9 3a 90 c3 cc cc cc cc cc cc cc cc cc cc cc cc cc 90 90
[   71.466393][ T1324] RSP: 0018:ffffc9000606f728 EFLAGS: 00010293
[   71.466401][ T1324] RAX: ffffffff88f413a0 RBX: 0000000000000001 RCX: ffff88802934dac0
[   71.466408][ T1324] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8f6d1d50
[   71.466414][ T1324] RBP: ffff8880b893d960 R08: 0000000000000000 R09: 0000000000000000
[   71.466420][ T1324] R10: dffffc0000000000 R11: fffffbfff1ed3fb7 R12: ffff8880b893d978
[   71.466427][ T1324] R13: dffffc0000000000 R14: 0000000000000200 R15: ffff8880b893d958
[   71.466437][ T1324]  ? enqueue_to_backlog+0x520/0xcf0
[   71.466451][ T1324]  enqueue_to_backlog+0x525/0xcf0
[   71.466466][ T1324]  netif_rx_internal+0x120/0x590
[   71.466480][ T1324]  ? __pfx_netif_rx_internal+0x10/0x10
[   71.466492][ T1324]  ? __lock_acquire+0x6b5/0x2cf0
[   71.466506][ T1324]  ? eth_type_trans+0x35e/0x6d0
[   71.466519][ T1324]  ? rcu_is_watching+0x15/0xb0
[   71.466531][ T1324]  __netif_rx+0xa9/0x110
[   71.466542][ T1324]  loopback_xmit+0x43a/0x660
[   71.466560][ T1324]  dev_hard_start_xmit+0x2f2/0x8b0
[   71.466581][ T1324]  __dev_queue_xmit+0x16f4/0x39e0
[   71.466590][ T1324]  ? sched_clock+0x3f/0x60
[   71.466606][ T1324]  ? __pfx___schedule+0x10/0x10
[   71.466618][ T1324]  ? __dev_queue_xmit+0x27d/0x39e0
[   71.466631][ T1324]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[   71.466645][ T1324]  ? __pfx___dev_queue_xmit+0x10/0x10
[   71.466655][ T1324]  ? preempt_schedule_common+0x82/0xd0
[   71.466668][ T1324]  ? preempt_schedule_thunk+0x16/0x30
[   71.466682][ T1324]  ? rt_mutex_slowunlock+0x681/0x8b0
[   71.466696][ T1324]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[   71.466709][ T1324]  ? rt_spin_unlock+0x14f/0x200
[   71.466722][ T1324]  ? rt_spin_unlock+0x160/0x200
[   71.466734][ T1324]  tx+0x6b/0x190
[   71.466743][ T1324]  ? __pfx_tx+0x10/0x10
[   71.466752][ T1324]  kthread+0x1e0/0x3f0
[   71.466772][ T1324]  ? __pfx_kthread+0x10/0x10
[   71.466785][ T1324]  ? __pfx_default_wake_function+0x10/0x10
[   71.466797][ T1324]  ? __kthread_parkme+0x7a/0x1f0
[   71.466815][ T1324]  kthread+0x388/0x470
[   71.466825][ T1324]  ? __pfx_kthread+0x10/0x10
[   71.466837][ T1324]  ? __pfx_kthread+0x10/0x10
[   71.466847][ T1324]  ret_from_fork+0x51e/0xb90
[   71.466861][ T1324]  ? __pfx_ret_from_fork+0x10/0x10
[   71.466873][ T1324]  ? __switch_to+0xc7d/0x1450
[   71.466886][ T1324]  ? __pfx_kthread+0x10/0x10
[   71.466896][ T1324]  ret_from_fork_asm+0x1a/0x30
[   71.466913][ T1324]  </TASK>
[   71.467406][ T1324] Kernel Offset: disabled


syzkaller build log:
go env (err=<nil>)
AR='ar'
CC='gcc'
CGO_CFLAGS='-O2 -g'
CGO_CPPFLAGS=''
CGO_CXXFLAGS='-O2 -g'
CGO_ENABLED='1'
CGO_FFLAGS='-O2 -g'
CGO_LDFLAGS='-O2 -g'
CXX='g++'
GCCGO='gccgo'
GO111MODULE='auto'
GOAMD64='v1'
GOARCH='amd64'
GOAUTH='netrc'
GOBIN=''
GOCACHE='/syzkaller/.cache/go-build'
GOCACHEPROG=''
GODEBUG=''
GOENV='/syzkaller/.config/go/env'
GOEXE=''
GOEXPERIMENT=''
GOFIPS140='off'
GOFLAGS=''
GOGCCFLAGS='-fPIC -m64 -pthread -Wl,--no-gc-sections -fmessage-length=0 -ffile-prefix-map=/tmp/go-build307296379=/tmp/go-build -gno-record-gcc-switches'
GOHOSTARCH='amd64'
GOHOSTOS='linux'
GOINSECURE=''
GOMOD='/syzkaller/jobs-2/linux/gopath/src/github.com/google/syzkaller/go.mod'
GOMODCACHE='/syzkaller/jobs-2/linux/gopath/pkg/mod'
GONOPROXY=''
GONOSUMDB=''
GOOS='linux'
GOPATH='/syzkaller/jobs-2/linux/gopath'
GOPRIVATE=''
GOPROXY='https://proxy.golang.org,direct'
GOROOT='/usr/local/go'
GOSUMDB='sum.golang.org'
GOTELEMETRY='local'
GOTELEMETRYDIR='/syzkaller/.config/go/telemetry'
GOTMPDIR=''
GOTOOLCHAIN='auto'
GOTOOLDIR='/usr/local/go/pkg/tool/linux_amd64'
GOVCS=''
GOVERSION='go1.24.4'
GOWORK=''
PKG_CONFIG='pkg-config'

git status (err=<nil>)
HEAD detached at fc9d8ee542c
nothing to commit, working tree clean


tput: No value for $TERM and no -T specified
tput: No value for $TERM and no -T specified
Makefile:31: run command via tools/syz-env for best compatibility, see:
Makefile:32: https://github.com/google/syzkaller/blob/master/docs/contributing.md#using-syz-env
go list -f '{{.Stale}}' ./sys/syz-sysgen | grep -q false || go install ./sys/syz-sysgen
make .descriptions
tput: No value for $TERM and no -T specified
tput: No value for $TERM and no -T specified
Makefile:31: run command via tools/syz-env for best compatibility, see:
Makefile:32: https://github.com/google/syzkaller/blob/master/docs/contributing.md#using-syz-env
bin/syz-sysgen
touch .descriptions
GOOS=linux GOARCH=amd64 go build -ldflags="-s -w -X github.com/google/syzkaller/prog.GitRevision=fc9d8ee542c85682943812ee52a252cbc934118d -X github.com/google/syzkaller/prog.gitRevisionDate=20250627-211417"  -o ./bin/linux_amd64/syz-execprog github.com/google/syzkaller/tools/syz-execprog
mkdir -p ./bin/linux_amd64
g++ -o ./bin/linux_amd64/syz-executor executor/executor.cc \
	-m64 -O2 -pthread -Wall -Werror -Wparentheses -Wunused-const-variable -Wframe-larger-than=16384 -Wno-stringop-overflow -Wno-array-bounds -Wno-format-overflow -Wno-unused-but-set-variable -Wno-unused-command-line-argument -static-pie -std=c++17 -I. -Iexecutor/_include   -DGOOS_linux=1 -DGOARCH_amd64=1 \
	-DHOSTGOOS_linux=1 -DGIT_REVISION=\"fc9d8ee542c85682943812ee52a252cbc934118d\"
/usr/bin/ld: /tmp/ccqOFOgQ.o: in function `Connection::Connect(char const*, char const*)':
executor.cc:(.text._ZN10Connection7ConnectEPKcS1_[_ZN10Connection7ConnectEPKcS1_]+0x386): warning: Using 'gethostbyname' in statically linked applications requires at runtime the shared libraries from the glibc version used for linking