ci starts bisection 2022-08-22 23:26:09.331342893 +0000 UTC m=+285875.967377310
bisecting fixing commit since 42226c989789d8da4af1de0c31070c96726d990c
building syzkaller on 744a39e220cece33e207035facce6c5ae161b775
testing commit 42226c989789d8da4af1de0c31070c96726d990c
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: b40dc28bff5043c7792a92facd217ce660c0f43e17574cf4fa39aeab11408076
run #0: basic kernel testing failed: BUG: program execution failed: executor NUM: exit status NUM
run #1: crashed: WARNING in default_device_exit_batch
run #2: crashed: WARNING in default_device_exit_batch
run #3: crashed: WARNING in default_device_exit_batch
run #4: crashed: WARNING in default_device_exit_batch
run #5: crashed: WARNING in default_device_exit_batch
run #6: crashed: WARNING in default_device_exit_batch
run #7: crashed: WARNING in default_device_exit_batch
run #8: crashed: WARNING in default_device_exit_batch
run #9: crashed: WARNING in default_device_exit_batch
run #10: crashed: WARNING in default_device_exit_batch
run #11: crashed: WARNING in default_device_exit_batch
run #12: crashed: WARNING in default_device_exit_batch
run #13: crashed: WARNING in default_device_exit_batch
run #14: crashed: WARNING in default_device_exit_batch
run #15: crashed: WARNING in default_device_exit_batch
run #16: crashed: WARNING in default_device_exit_batch
run #17: crashed: WARNING in default_device_exit_batch
run #18: crashed: WARNING in default_device_exit_batch
run #19: crashed: WARNING in default_device_exit_batch
testing current HEAD 072e51356cd5a4a1c12c1020bc054c99b98333df
testing commit 072e51356cd5a4a1c12c1020bc054c99b98333df
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: f73d272754a300434debed10e5e56188997b3c9060aa34ab8de80e431dfc69a0
all runs: crashed: WARNING in default_device_exit_batch
revisions tested: 2, total time: 21m52.95358272s (build: 13m15.844386474s, test: 7m55.898831106s)
the crash still happens on HEAD
commit msg: Merge tag 'nfs-for-5.20-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs
crash: WARNING in default_device_exit_batch
device veth1_macvtap left promiscuous mode
device veth0_macvtap left promiscuous mode
device veth1_vlan left promiscuous mode
device veth0_vlan left promiscuous mode
bond34 (unregistering): Released all slaves
------------[ cut here ]------------
WARNING: CPU: 0 PID: 6693 at net/core/dev.c:10885 netdev_has_any_lower_dev net/core/dev.c:6863 [inline]
WARNING: CPU: 0 PID: 6693 at net/core/dev.c:10885 unregister_netdevice_many+0x1134/0x1730 net/core/dev.c:10886
Modules linked in:
CPU: 1 PID: 6693 Comm: kworker/u4:6 Not tainted 6.0.0-rc2-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022
Workqueue: netns cleanup_net
RIP: 0010:unregister_netdevice_many+0x1134/0x1730 net/core/dev.c:10885
Code: 93 fa ff ff ba cf 1a 00 00 48 c7 c6 80 e6 03 8a 48 c7 c7 c0 e6 03 8a c6 05 0e 72 22 06 01 e8 e8 bf b5 01 0f 0b e9 6d fa ff ff <0f> 0b e9 59 fa ff ff 4c 89 44 24 08 e8 bb 18 fe fa 4c 8b 44 24 08
RSP: 0018:ffffc90003d8fa90 EFLAGS: 00010202
RAX: ffff8880754c1001 RBX: ffffffff898d0b20 RCX: ffffffff8155222e
RDX: 1ffff1100d71e814 RSI: 0000000000000008 RDI: ffffffff8c8b98c0
RBP: ffff88807a108100 R08: 0000000000000000 R09: ffffffff8c8b98c7
R10: fffffbfff1917318 R11: 0000000000000000 R12: ffff88806b8f4000
R13: dffffc0000000000 R14: 0000000000000000 R15: ffff88807a108100
FS:  0000000000000000(0000) GS:ffff8880b9f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffff0892d68 CR3: 000000001a2e8000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 default_device_exit_batch+0x39f/0x4f0 net/core/dev.c:11356
 cleanup_net+0x423/0x980 net/core/net_namespace.c:595
 process_one_work+0x841/0x13a0 kernel/workqueue.c:2289
 worker_thread+0x598/0xec0 kernel/workqueue.c:2436
 kthread+0x294/0x330 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>