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possible deadlock in __dev_queue_xmit

Status: closed as invalid on 2019/03/10 18:51
Subsystems: net
[Documentation on labels]
First crash: 2064d, last: 2064d
▶ ▼ Similar bugs (11)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
android-49 possible deadlock in __dev_queue_xmit 4 1906d 1975d 0/3 auto-closed as invalid on 2019/10/25 08:36
upstream possible deadlock in __dev_queue_xmit (3) net C done inconclusive 1012 61d 1742d 0/27 upstream: reported C repro on 2019/12/03 09:55
linux-4.19 possible deadlock in __dev_queue_xmit C error 5 1083d 1501d 0/1 upstream: reported C repro on 2020/07/31 07:05
android-414 possible deadlock in __dev_queue_xmit 3 1965d 1976d 0/1 auto-closed as invalid on 2019/10/21 21:31
android-44 possible deadlock in __dev_queue_xmit 14 1741d 1803d 0/2 auto-closed as invalid on 2020/04/02 07:14
linux-6.1 possible deadlock in __dev_queue_xmit 98 326d 439d 0/3 auto-obsoleted due to no activity on 2023/12/28 22:22
linux-4.14 possible deadlock in __dev_queue_xmit 7 1452d 1897d 0/1 auto-closed as invalid on 2021/01/16 21:33
linux-5.15 possible deadlock in __dev_queue_xmit 113 391d 526d 0/3 auto-obsoleted due to no activity on 2023/10/25 04:56
linux-6.1 possible deadlock in __dev_queue_xmit (2) 7 124d 234d 0/3 auto-obsoleted due to no activity on 2024/08/16 05:44
linux-5.15 possible deadlock in __dev_queue_xmit (2) origin:lts-only C done 14 28d 270d 0/3 upstream: reported C repro on 2023/12/15 02:11
upstream possible deadlock in __dev_queue_xmit (2) kernel 2 1876d 1992d 0/27 auto-closed as invalid on 2019/11/19 09:01

Sample crash report:
============================================
WARNING: possible recursive locking detected
4.20.0+ #3 Not tainted
--------------------------------------------
syz-executor3/27412 is trying to acquire lock:
00000000acbc924c (_xmit_ETHER#2){+.-.}, at: spin_lock include/linux/spinlock.h:329 [inline]
00000000acbc924c (_xmit_ETHER#2){+.-.}, at: __netif_tx_lock include/linux/netdevice.h:3866 [inline]
00000000acbc924c (_xmit_ETHER#2){+.-.}, at: __dev_queue_xmit+0x306f/0x3a60 net/core/dev.c:3860

but task is already holding lock:
00000000d6c9109d (_xmit_ETHER#2){+.-.}, at: spin_lock include/linux/spinlock.h:329 [inline]
00000000d6c9109d (_xmit_ETHER#2){+.-.}, at: __netif_tx_lock include/linux/netdevice.h:3866 [inline]
00000000d6c9109d (_xmit_ETHER#2){+.-.}, at: sch_direct_xmit+0x3b8/0x1100 net/sched/sch_generic.c:325

other info that might help us debug this:
 Possible unsafe locking scenario:

       CPU0
       ----
  lock(_xmit_ETHER#2);
  lock(_xmit_ETHER#2);

 *** DEADLOCK ***

 May be due to missing lock nesting notation

7 locks held by syz-executor3/27412:
 #0: 00000000029f97db (rcu_read_lock_bh){....}, at: lwtunnel_xmit_redirect include/net/lwtunnel.h:92 [inline]
 #0: 00000000029f97db (rcu_read_lock_bh){....}, at: ip_finish_output2+0x2ed/0x1a00 net/ipv4/ip_output.c:213
 #1: 00000000029f97db (rcu_read_lock_bh){....}, at: __dev_queue_xmit+0x2af/0x3a60 net/core/dev.c:3798
 #2: 00000000824e3d38 (&(&sch->seqlock)->rlock){+...}, at: spin_trylock include/linux/spinlock.h:339 [inline]
 #2: 00000000824e3d38 (&(&sch->seqlock)->rlock){+...}, at: qdisc_run_begin include/net/sch_generic.h:145 [inline]
 #2: 00000000824e3d38 (&(&sch->seqlock)->rlock){+...}, at: qdisc_run include/net/pkt_sched.h:120 [inline]
 #2: 00000000824e3d38 (&(&sch->seqlock)->rlock){+...}, at: __dev_xmit_skb net/core/dev.c:3473 [inline]
 #2: 00000000824e3d38 (&(&sch->seqlock)->rlock){+...}, at: __dev_queue_xmit+0x316e/0x3a60 net/core/dev.c:3832
 #3: 00000000df3f1128 (dev->qdisc_running_key ?: &qdisc_running_key){+...}, at: dev_queue_xmit+0x18/0x20 net/core/dev.c:3897
 #4: 00000000d6c9109d (_xmit_ETHER#2){+.-.}, at: spin_lock include/linux/spinlock.h:329 [inline]
 #4: 00000000d6c9109d (_xmit_ETHER#2){+.-.}, at: __netif_tx_lock include/linux/netdevice.h:3866 [inline]
 #4: 00000000d6c9109d (_xmit_ETHER#2){+.-.}, at: sch_direct_xmit+0x3b8/0x1100 net/sched/sch_generic.c:325
 #5: 00000000029f97db (rcu_read_lock_bh){....}, at: lwtunnel_xmit_redirect include/net/lwtunnel.h:92 [inline]
 #5: 00000000029f97db (rcu_read_lock_bh){....}, at: ip_finish_output2+0x2ed/0x1a00 net/ipv4/ip_output.c:213
 #6: 00000000029f97db (rcu_read_lock_bh){....}, at: __dev_queue_xmit+0x2af/0x3a60 net/core/dev.c:3798

stack backtrace:
CPU: 0 PID: 27412 Comm: syz-executor3 Not tainted 4.20.0+ #3
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1db/0x2d0 lib/dump_stack.c:113
 print_deadlock_bug kernel/locking/lockdep.c:1764 [inline]
 check_deadlock kernel/locking/lockdep.c:1808 [inline]
 validate_chain kernel/locking/lockdep.c:2334 [inline]
 __lock_acquire.cold+0x216/0x4f8 kernel/locking/lockdep.c:3338
 lock_acquire+0x1db/0x570 kernel/locking/lockdep.c:3841
 __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline]
 _raw_spin_lock+0x2f/0x40 kernel/locking/spinlock.c:144
 spin_lock include/linux/spinlock.h:329 [inline]
 __netif_tx_lock include/linux/netdevice.h:3866 [inline]
 __dev_queue_xmit+0x306f/0x3a60 net/core/dev.c:3860
 dev_queue_xmit+0x18/0x20 net/core/dev.c:3897
 neigh_resolve_output net/core/neighbour.c:1471 [inline]
 neigh_resolve_output+0x6a0/0xb30 net/core/neighbour.c:1451
 neigh_output include/net/neighbour.h:508 [inline]
 ip_finish_output2+0xa35/0x1a00 net/ipv4/ip_output.c:229
 ip_finish_output+0x7e4/0xf60 net/ipv4/ip_output.c:317
 NF_HOOK_COND include/linux/netfilter.h:278 [inline]
 ip_mc_output+0x2cb/0x1610 net/ipv4/ip_output.c:390
 dst_output include/net/dst.h:444 [inline]
 ip_local_out+0xc4/0x1b0 net/ipv4/ip_output.c:124
 iptunnel_xmit+0x58e/0x980 net/ipv4/ip_tunnel_core.c:91
 ip_tunnel_xmit+0x159f/0x3c70 net/ipv4/ip_tunnel.c:787
 __gre_xmit+0x5e9/0x9a0 net/ipv4/ip_gre.c:453
 erspan_xmit net/ipv4/ip_gre.c:751 [inline]
 erspan_xmit+0x891/0x28d0 net/ipv4/ip_gre.c:716
 __netdev_start_xmit include/linux/netdevice.h:4382 [inline]
 netdev_start_xmit include/linux/netdevice.h:4391 [inline]
 xmit_one net/core/dev.c:3278 [inline]
 dev_hard_start_xmit+0x261/0xc70 net/core/dev.c:3294
 sch_direct_xmit+0x452/0x1100 net/sched/sch_generic.c:327
 qdisc_restart net/sched/sch_generic.c:390 [inline]
 __qdisc_run+0x606/0x19d0 net/sched/sch_generic.c:398
 qdisc_run include/net/pkt_sched.h:121 [inline]
 qdisc_run include/net/pkt_sched.h:118 [inline]
 __dev_xmit_skb net/core/dev.c:3473 [inline]
 __dev_queue_xmit+0x29d0/0x3a60 net/core/dev.c:3832
 dev_queue_xmit+0x18/0x20 net/core/dev.c:3897
 neigh_resolve_output net/core/neighbour.c:1471 [inline]
 neigh_resolve_output+0x6a0/0xb30 net/core/neighbour.c:1451
 neigh_output include/net/neighbour.h:508 [inline]
 ip_finish_output2+0xa35/0x1a00 net/ipv4/ip_output.c:229
 ip_finish_output+0x7e4/0xf60 net/ipv4/ip_output.c:317
 NF_HOOK_COND include/linux/netfilter.h:278 [inline]
 ip_mc_output+0x2cb/0x1610 net/ipv4/ip_output.c:390
 dst_output include/net/dst.h:444 [inline]
 ip_local_out+0xc4/0x1b0 net/ipv4/ip_output.c:124
 ip_send_skb+0x42/0xf0 net/ipv4/ip_output.c:1465
 udp_send_skb.isra.0+0x6b2/0x1160 net/ipv4/udp.c:891
 udp_sendmsg+0x2902/0x3a40 net/ipv4/udp.c:1178
 inet_sendmsg+0x1af/0x740 net/ipv4/af_inet.c:798
 sock_sendmsg_nosec net/socket.c:621 [inline]
 sock_sendmsg+0xdd/0x130 net/socket.c:631
 ___sys_sendmsg+0x409/0x910 net/socket.c:2116
 __sys_sendmmsg+0x246/0x6f0 net/socket.c:2211
 __do_sys_sendmmsg net/socket.c:2240 [inline]
 __se_sys_sendmmsg net/socket.c:2237 [inline]
 __x64_sys_sendmmsg+0x9d/0x100 net/socket.c:2237
 do_syscall_64+0x1a3/0x800 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x457ec9
Code: 6d b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 3b b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007fcfe5d6bc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000133
RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000000457ec9
RDX: 04000000000003f0 RSI: 0000000020004e00 RDI: 0000000000000004
RBP: 000000000073bfa0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fcfe5d6c6d4
R13: 00000000004c4d9c R14: 00000000004d8840 R15: 00000000ffffffff
kobject: 'loop1' (00000000b0e9d9be): kobject_uevent_env
kobject: 'loop1' (00000000b0e9d9be): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop2' (000000000b67ff6f): kobject_uevent_env
kobject: 'loop2' (000000000b67ff6f): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop1' (00000000b0e9d9be): kobject_uevent_env
kobject: 'loop1' (00000000b0e9d9be): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop5' (0000000017985305): kobject_uevent_env
kobject: 'loop5' (0000000017985305): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'loop2' (000000000b67ff6f): kobject_uevent_env
kobject: 'loop2' (000000000b67ff6f): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop4' (00000000f21100a6): kobject_uevent_env
kobject: 'loop4' (00000000f21100a6): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'loop2' (000000000b67ff6f): kobject_uevent_env
kobject: 'loop2' (000000000b67ff6f): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop1' (00000000b0e9d9be): kobject_uevent_env
kobject: 'loop1' (00000000b0e9d9be): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop2' (000000000b67ff6f): kobject_uevent_env
kobject: 'loop2' (000000000b67ff6f): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop4' (00000000f21100a6): kobject_uevent_env
kobject: 'loop4' (00000000f21100a6): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'loop3' (000000000a1f60cd): kobject_uevent_env
kobject: 'loop3' (000000000a1f60cd): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop0' (00000000b444334f): kobject_uevent_env
kobject: 'loop0' (00000000b444334f): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'loop1' (00000000b0e9d9be): kobject_uevent_env
kobject: 'loop1' (00000000b0e9d9be): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop2' (000000000b67ff6f): kobject_uevent_env
kobject: 'loop2' (000000000b67ff6f): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop1' (00000000b0e9d9be): kobject_uevent_env
kobject: 'loop1' (00000000b0e9d9be): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop4' (00000000f21100a6): kobject_uevent_env
kobject: 'loop4' (00000000f21100a6): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'loop5' (0000000017985305): kobject_uevent_env
kobject: 'loop5' (0000000017985305): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'loop2' (000000000b67ff6f): kobject_uevent_env
kobject: 'loop2' (000000000b67ff6f): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop3' (000000000a1f60cd): kobject_uevent_env
kobject: 'loop3' (000000000a1f60cd): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop2' (000000000b67ff6f): kobject_uevent_env
kobject: 'loop2' (000000000b67ff6f): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop1' (00000000b0e9d9be): kobject_uevent_env
kobject: 'loop1' (00000000b0e9d9be): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop4' (00000000f21100a6): kobject_uevent_env
kobject: 'loop4' (00000000f21100a6): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'loop2' (000000000b67ff6f): kobject_uevent_env
kobject: 'loop2' (000000000b67ff6f): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop0' (00000000b444334f): kobject_uevent_env
net_ratelimit: 24 callbacks suppressed
ip_tunnel: non-ECT from 172.20.255.187 with TOS=0x92
kobject: 'loop0' (00000000b444334f): fill_kobj_path: path = '/devices/virtual/block/loop0'
ip_tunnel: non-ECT from 172.20.255.187 with TOS=0x92
kobject: 'loop1' (00000000b0e9d9be): kobject_uevent_env
kobject: 'loop1' (00000000b0e9d9be): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop2' (000000000b67ff6f): kobject_uevent_env
kobject: 'loop2' (000000000b67ff6f): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop4' (00000000f21100a6): kobject_uevent_env
ip_tunnel: non-ECT from 172.20.255.187 with TOS=0x1a
kobject: 'loop4' (00000000f21100a6): fill_kobj_path: path = '/devices/virtual/block/loop4'
ip_tunnel: non-ECT from 172.20.255.187 with TOS=0x1a
kobject: 'loop5' (0000000017985305): kobject_uevent_env
kobject: 'loop5' (0000000017985305): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'loop1' (00000000b0e9d9be): kobject_uevent_env
kobject: 'loop1' (00000000b0e9d9be): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop2' (000000000b67ff6f): kobject_uevent_env
kobject: 'loop2' (000000000b67ff6f): fill_kobj_path: path = '/devices/virtual/block/loop2'
ip_tunnel: non-ECT from 172.20.255.187 with TOS=0xfa
kobject: 'loop3' (000000000a1f60cd): kobject_uevent_env
kobject: 'loop3' (000000000a1f60cd): fill_kobj_path: path = '/devices/virtual/block/loop3'
ip_tunnel: non-ECT from 172.20.255.187 with TOS=0xfa
kobject: 'loop1' (00000000b0e9d9be): kobject_uevent_env
kobject: 'loop1' (00000000b0e9d9be): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop2' (000000000b67ff6f): kobject_uevent_env
kobject: 'loop2' (000000000b67ff6f): fill_kobj_path: path = '/devices/virtual/block/loop2'
ip_tunnel: non-ECT from 172.20.255.187 with TOS=0xfa
kobject: 'loop1' (00000000b0e9d9be): kobject_uevent_env
kobject: 'loop1' (00000000b0e9d9be): fill_kobj_path: path = '/devices/virtual/block/loop1'
ip_tunnel: non-ECT from 172.20.255.187 with TOS=0xfa
kobject: 'loop1' (00000000b0e9d9be): kobject_uevent_env
kobject: 'loop1' (00000000b0e9d9be): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop2' (000000000b67ff6f): kobject_uevent_env
kobject: 'loop2' (000000000b67ff6f): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop4' (00000000f21100a6): kobject_uevent_env
kobject: 'loop4' (00000000f21100a6): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'loop0' (00000000b444334f): kobject_uevent_env
kobject: 'loop0' (00000000b444334f): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'loop1' (00000000b0e9d9be): kobject_uevent_env
kobject: 'loop1' (00000000b0e9d9be): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop3' (000000000a1f60cd): kobject_uevent_env
kobject: 'loop3' (000000000a1f60cd): fill_kobj_path: path = '/devices/virtual/block/loop3'
ip_tunnel: non-ECT from 172.20.255.187 with TOS=0xe
kobject: 'loop5' (0000000017985305): kobject_uevent_env
kobject: 'loop5' (0000000017985305): fill_kobj_path: path = '/devices/virtual/block/loop5'
ip_tunnel: non-ECT from 172.20.255.187 with TOS=0xe
kobject: 'loop1' (00000000b0e9d9be): kobject_uevent_env
kobject: 'loop1' (00000000b0e9d9be): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop4' (00000000f21100a6): kobject_uevent_env
kobject: 'loop4' (00000000f21100a6): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'loop2' (000000000b67ff6f): kobject_uevent_env
kobject: 'loop2' (000000000b67ff6f): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop1' (00000000b0e9d9be): kobject_uevent_env
kobject: 'loop1' (00000000b0e9d9be): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop4' (00000000f21100a6): kobject_uevent_env
kobject: 'loop4' (00000000f21100a6): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'loop2' (000000000b67ff6f): kobject_uevent_env
kobject: 'loop2' (000000000b67ff6f): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop3' (000000000a1f60cd): kobject_uevent_env
kobject: 'loop3' (000000000a1f60cd): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop0' (00000000b444334f): kobject_uevent_env
kobject: 'loop0' (00000000b444334f): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'loop1' (00000000b0e9d9be): kobject_uevent_env
kobject: 'loop1' (00000000b0e9d9be): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop5' (0000000017985305): kobject_uevent_env
kobject: 'loop5' (0000000017985305): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'loop1' (00000000b0e9d9be): kobject_uevent_env
kobject: 'loop1' (00000000b0e9d9be): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop2' (000000000b67ff6f): kobject_uevent_env
kobject: 'loop2' (000000000b67ff6f): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop4' (00000000f21100a6): kobject_uevent_env
kobject: 'loop4' (00000000f21100a6): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'loop1' (00000000b0e9d9be): kobject_uevent_env
kobject: 'loop1' (00000000b0e9d9be): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop2' (000000000b67ff6f): kobject_uevent_env
kobject: 'loop2' (000000000b67ff6f): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop4' (00000000f21100a6): kobject_uevent_env
kobject: 'loop4' (00000000f21100a6): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'loop1' (00000000b0e9d9be): kobject_uevent_env
kobject: 'loop1' (00000000b0e9d9be): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop0' (00000000b444334f): kobject_uevent_env
kobject: 'loop0' (00000000b444334f): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'loop3' (000000000a1f60cd): kobject_uevent_env
kobject: 'loop3' (000000000a1f60cd): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop2' (000000000b67ff6f): kobject_uevent_env
kobject: 'loop2' (000000000b67ff6f): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop4' (00000000f21100a6): kobject_uevent_env
kobject: 'loop4' (00000000f21100a6): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'loop5' (0000000017985305): kobject_uevent_env
kobject: 'loop5' (0000000017985305): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'loop2' (000000000b67ff6f): kobject_uevent_env
kobject: 'loop2' (000000000b67ff6f): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop1' (00000000b0e9d9be): kobject_uevent_env
kobject: 'loop1' (00000000b0e9d9be): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop4' (00000000f21100a6): kobject_uevent_env
kobject: 'loop4' (00000000f21100a6): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'loop2' (000000000b67ff6f): kobject_uevent_env
kobject: 'loop2' (000000000b67ff6f): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop2' (000000000b67ff6f): kobject_uevent_env
kobject: 'loop2' (000000000b67ff6f): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop1' (00000000b0e9d9be): kobject_uevent_env
kobject: 'loop1' (00000000b0e9d9be): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop3' (000000000a1f60cd): kobject_uevent_env
kobject: 'loop3' (000000000a1f60cd): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop0' (00000000b444334f): kobject_uevent_env
kobject: 'loop0' (00000000b444334f): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'loop5' (0000000017985305): kobject_uevent_env
kobject: 'loop5' (0000000017985305): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'loop2' (000000000b67ff6f): kobject_uevent_env
kobject: 'loop2' (000000000b67ff6f): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop1' (00000000b0e9d9be): kobject_uevent_env
kobject: 'loop1' (00000000b0e9d9be): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop4' (00000000f21100a6): kobject_uevent_env
kobject: 'loop4' (00000000f21100a6): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'loop2' (000000000b67ff6f): kobject_uevent_env
kobject: 'loop2' (000000000b67ff6f): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop1' (00000000b0e9d9be): kobject_uevent_env
kobject: 'loop1' (00000000b0e9d9be): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop4' (00000000f21100a6): kobject_uevent_env
kobject: 'loop4' (00000000f21100a6): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'loop2' (000000000b67ff6f): kobject_uevent_env
kobject: 'loop2' (000000000b67ff6f): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop3' (000000000a1f60cd): kobject_uevent_env
kobject: 'loop3' (000000000a1f60cd): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop0' (00000000b444334f): kobject_uevent_env
kobject: 'loop0' (00000000b444334f): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'loop5' (0000000017985305): kobject_uevent_env
kobject: 'loop5' (0000000017985305): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'loop2' (000000000b67ff6f): kobject_uevent_env
kobject: 'loop2' (000000000b67ff6f): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop1' (00000000b0e9d9be): kobject_uevent_env
kobject: 'loop1' (00000000b0e9d9be): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop4' (00000000f21100a6): kobject_uevent_env
kobject: 'loop4' (00000000f21100a6): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'loop1' (00000000b0e9d9be): kobject_uevent_env
kobject: 'loop1' (00000000b0e9d9be): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop2' (000000000b67ff6f): kobject_uevent_env
kobject: 'loop2' (000000000b67ff6f): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop4' (00000000f21100a6): kobject_uevent_env
kobject: 'loop4' (00000000f21100a6): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'loop3' (000000000a1f60cd): kobject_uevent_env
kobject: 'loop3' (000000000a1f60cd): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop0' (00000000b444334f): kobject_uevent_env
kobject: 'loop0' (00000000b444334f): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'loop5' (0000000017985305): kobject_uevent_env
kobject: 'loop5' (0000000017985305): fill_kobj_path: path = '/devices/virtual/block/loop5'
net_ratelimit: 32 callbacks suppressed
ip_tunnel: non-ECT from 172.20.255.187 with TOS=0x2
kobject: 'loop1' (00000000b0e9d9be): kobject_uevent_env
ip_tunnel: non-ECT from 172.20.255.187 with TOS=0x2
kobject: 'loop1' (00000000b0e9d9be): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop2' (000000000b67ff6f): kobject_uevent_env
kobject: 'loop2' (000000000b67ff6f): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop1' (00000000b0e9d9be): kobject_uevent_env
kobject: 'loop1' (00000000b0e9d9be): fill_kobj_path: path = '/devices/virtual/block/loop1'
ip_tunnel: non-ECT from 172.20.255.187 with TOS=0x2
kobject: 'loop4' (00000000f21100a6): kobject_uevent_env
kobject: 'loop4' (00000000f21100a6): fill_kobj_path: path = '/devices/virtual/block/loop4'
ip_tunnel: non-ECT from 172.20.255.187 with TOS=0x2
kobject: 'loop1' (00000000b0e9d9be): kobject_uevent_env
kobject: 'loop1' (00000000b0e9d9be): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop2' (000000000b67ff6f): kobject_uevent_env
kobject: 'loop2' (000000000b67ff6f): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop1' (00000000b0e9d9be): kobject_uevent_env
ip_tunnel: non-ECT from 172.20.255.187 with TOS=0x2
kobject: 'loop1' (00000000b0e9d9be): fill_kobj_path: path = '/devices/virtual/block/loop1'
ip_tunnel: non-ECT from 172.20.255.187 with TOS=0x2
kobject: 'loop4' (00000000f21100a6): kobject_uevent_env
kobject: 'loop4' (00000000f21100a6): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'loop2' (000000000b67ff6f): kobject_uevent_env
kobject: 'loop2' (000000000b67ff6f): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop3' (000000000a1f60cd): kobject_uevent_env
kobject: 'loop3' (000000000a1f60cd): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop5' (0000000017985305): kobject_uevent_env
kobject: 'loop5' (0000000017985305): fill_kobj_path: path = '/devices/virtual/block/loop5'
ip_tunnel: non-ECT from 172.20.255.187 with TOS=0x2
ip_tunnel: non-ECT from 172.20.255.187 with TOS=0x2
kobject: 'loop0' (00000000b444334f): kobject_uevent_env
kobject: 'loop0' (00000000b444334f): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'loop1' (00000000b0e9d9be): kobject_uevent_env
kobject: 'loop1' (00000000b0e9d9be): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop4' (00000000f21100a6): kobject_uevent_env
ip_tunnel: non-ECT from 172.20.255.187 with TOS=0x2
kobject: 'loop4' (00000000f21100a6): fill_kobj_path: path = '/devices/virtual/block/loop4'
ip_tunnel: non-ECT from 172.20.255.187 with TOS=0x2
kobject: 'loop2' (000000000b67ff6f): kobject_uevent_env
kobject: 'loop2' (000000000b67ff6f): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop1' (00000000b0e9d9be): kobject_uevent_env
kobject: 'loop1' (00000000b0e9d9be): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop2' (000000000b67ff6f): kobject_uevent_env
kobject: 'loop2' (000000000b67ff6f): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop4' (00000000f21100a6): kobject_uevent_env
kobject: 'loop4' (00000000f21100a6): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'loop2' (000000000b67ff6f): kobject_uevent_env
kobject: 'loop2' (000000000b67ff6f): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop3' (000000000a1f60cd): kobject_uevent_env
kobject: 'loop3' (000000000a1f60cd): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop5' (0000000017985305): kobject_uevent_env
kobject: 'loop5' (0000000017985305): fill_kobj_path: path = '/devices/virtual/block/loop5'

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2019/01/15 15:20 net-next-old b71acb0e3721 79cb1a7c .config console log report ci-upstream-net-kasan-gce
* Struck through repros no longer work on HEAD.