ci starts bisection 2022-11-23 22:54:08.034940852 +0000 UTC m=+16224.648197320
bisecting fixing commit since 42226c989789d8da4af1de0c31070c96726d990c
building syzkaller on 744a39e220cece33e207035facce6c5ae161b775
ensuring issue is reproducible on original commit 42226c989789d8da4af1de0c31070c96726d990c

testing commit 42226c989789d8da4af1de0c31070c96726d990c gcc
compiler: Debian clang version 13.0.1-++20220126092033+75e33f71c2da-1~exp1~20220126212112.63, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: b1e1b9c95316610cbde0cfca1554074fd135efaa861a05031fbd0bac6a0f2d38
run #0: basic kernel testing failed: BUG: program execution failed: executor NUM: failed to write control pipe: write |NUM: broken pipe
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 4312098baf37ee17a8350725e6e0d0e8590252d4
testing commit 4312098baf37ee17a8350725e6e0d0e8590252d4 gcc
compiler: Debian clang version 13.0.1-++20220126092033+75e33f71c2da-1~exp1~20220126212112.63, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: fb07eb84bb5768feafc0759724588459324dc173c2168ba87de600d0e617e814
all runs: crashed: WARNING in default_device_exit_batch
revisions tested: 2, total time: 23m56.53029223s (build: 14m46.109539796s, test: 8m25.183683126s)
the crash still happens on HEAD
commit msg: Merge tag 'spi-fix-v6.1-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
crash: WARNING in default_device_exit_batch
device veth0_vlan left promiscuous mode
bond47 (unregistering): Released all slaves
bond46 (unregistering): Released all slaves
------------[ cut here ]------------
WARNING: CPU: 0 PID: 34 at net/core/dev.c:10870 unregister_netdevice_many+0x11f6/0x1610 net/core/dev.c:10860
Modules linked in:
CPU: 1 PID: 34 Comm: kworker/u4:2 Not tainted 6.1.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
Workqueue: netns cleanup_net
RIP: 0010:unregister_netdevice_many+0x11f6/0x1610 net/core/dev.c:10870
Code: 8b 7c 24 28 4d 8d 67 f0 48 8b 44 24 50 42 80 3c 28 00 48 8b 5c 24 30 0f 84 f7 fd ff ff 4c 89 f7 e8 1f 7b 41 fa e9 ea fd ff ff <0f> 0b e9 44 fd ff ff 0f 0b e9 7c fd ff ff c6 05 3b b5 7f 05 01 48
RSP: 0018:ffffc90000ab78e0 EFLAGS: 00010202
RAX: ffff88807abdcb20 RBX: ffff88806a3ac0a0 RCX: dffffc0000000000
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff8cce6640
RBP: ffffc90000ab7a50 R08: dffffc0000000000 R09: fffffbfff199ccc9
R10: fffffbfff199ccc9 R11: 1ffffffff199ccc8 R12: ffff88806a3ac0d0
R13: dffffc0000000000 R14: ffff88806a3ac060 R15: ffff88806a3ac060
FS:  0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555c33f4c950 CR3: 000000000ba8e000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 default_device_exit_batch+0x41d/0x590 net/core/dev.c:11341
 ops_exit_list net/core/net_namespace.c:174 [inline]
 cleanup_net+0x67d/0xa80 net/core/net_namespace.c:601
 process_one_work+0x794/0xc10 kernel/workqueue.c:2289
 worker_thread+0x8ff/0xfe0 kernel/workqueue.c:2436
 kthread+0x228/0x2a0 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>