ci starts bisection 2023-01-27 14:58:49.558739284 +0000 UTC m=+416843.504801351 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 13.0.1-6~deb11u1, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: a421ee07e1bf4d1106a3007ce97466b2442f9c2d94d7597c3bd5cf2067a1327e all runs: crashed: WARNING in default_device_exit_batch testing current HEAD c96618275234ad03d44eafe9f8844305bb44fda4 testing commit c96618275234ad03d44eafe9f8844305bb44fda4 gcc compiler: Debian clang version 13.0.1-6~deb11u1, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: b46b8b6604418d491b4fd718704ab725535a58c5fea9fb0cf4c95ac96cafd3e1 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 revisions tested: 2, total time: 24m7.873427782s (build: 14m46.991437593s, test: 8m18.269367178s) the crash still happens on HEAD commit msg: Fix up more non-executable files marked executable 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 bond60 (unregistering): Released all slaves ------------[ cut here ]------------ WARNING: CPU: 0 PID: 68 at net/core/dev.c:10865 unregister_netdevice_many_notify+0x132c/0x1790 net/core/dev.c:10853 Modules linked in: CPU: 0 PID: 68 Comm: kworker/u4:3 Not tainted 6.2.0-rc5-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023 Workqueue: netns cleanup_net RIP: 0010:unregister_netdevice_many_notify+0x132c/0x1790 net/core/dev.c:10865 Code: 8b 7c 24 10 4d 8d 6f f0 48 8b 44 24 28 42 80 3c 20 00 4c 8b 74 24 70 0f 84 01 fe ff ff 48 89 df e8 99 74 2b fa e9 f4 fd ff ff <0f> 0b e9 4e fd ff ff 0f 0b e9 83 fd ff ff c6 05 49 3a 67 05 01 48 RSP: 0018:ffffc900020bf8a0 EFLAGS: 00010287 RAX: ffff8880676264a0 RBX: ffff888069bec0a0 RCX: dffffc0000000000 RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff8cce0480 RBP: ffffc900020bfa50 R08: dffffc0000000000 R09: fffffbfff199c091 R10: fffffbfff199c091 R11: 1ffffffff199c090 R12: dffffc0000000000 R13: ffff888069bec060 R14: ffff888069bec060 R15: ffffc900020bfae0 FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffff7a24ff8 CR3: 0000000029719000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: unregister_netdevice_many net/core/dev.c:10895 [inline] default_device_exit_batch+0x421/0x590 net/core/dev.c:11348 ops_exit_list net/core/net_namespace.c:174 [inline] cleanup_net+0x67d/0xa90 net/core/net_namespace.c:606 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:308