bisecting fixing commit since 3dbdb38e286903ec220aaf1fb29a8d94297da246 building syzkaller on 8f5a7b8cde529e0a19a53f79bdf9c6cad306827b testing commit 3dbdb38e286903ec220aaf1fb29a8d94297da246 compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 98d85a40ffe74e8cadb1f97794fa55fd13e1eff134d8babcbdf8c9c47a10cb7a run #0: basic kernel testing failed: possible deadlock in fs_reclaim_acquire run #1: basic kernel testing failed: BUG: sleeping function called from invalid context in stack_depot_save run #2: basic kernel testing failed: possible deadlock in fs_reclaim_acquire run #3: basic kernel testing failed: BUG: sleeping function called from invalid context in stack_depot_save run #4: crashed: WARNING in bcm5974_start_traffic/usb_submit_urb run #5: crashed: WARNING in bcm5974_start_traffic/usb_submit_urb run #6: crashed: WARNING in bcm5974_start_traffic/usb_submit_urb run #7: crashed: WARNING in bcm5974_start_traffic/usb_submit_urb run #8: crashed: WARNING in bcm5974_start_traffic/usb_submit_urb run #9: crashed: WARNING in bcm5974_start_traffic/usb_submit_urb run #10: crashed: WARNING in bcm5974_start_traffic/usb_submit_urb run #11: crashed: WARNING in bcm5974_start_traffic/usb_submit_urb run #12: crashed: WARNING in bcm5974_start_traffic/usb_submit_urb run #13: crashed: WARNING in bcm5974_start_traffic/usb_submit_urb run #14: crashed: WARNING in bcm5974_start_traffic/usb_submit_urb run #15: crashed: WARNING in bcm5974_start_traffic/usb_submit_urb run #16: crashed: WARNING in bcm5974_start_traffic/usb_submit_urb run #17: crashed: WARNING in bcm5974_start_traffic/usb_submit_urb run #18: crashed: possible deadlock in fs_reclaim_acquire run #19: crashed: WARNING in bcm5974_start_traffic/usb_submit_urb testing current HEAD 88808fbbead481aedb46640a5ace69c58287f56a testing commit 88808fbbead481aedb46640a5ace69c58287f56a compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 6ddad83dd842a31808614ebd6a9573051e3f245c2222019da852a26caf530b77 all runs: crashed: WARNING in bcm5974_start_traffic/usb_submit_urb revisions tested: 2, total time: 19m25.580727418s (build: 12m27.421436196s, test: 6m14.952836395s) the crash still happens on HEAD commit msg: Merge tag 'nfsd-5.17-1' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux crash: WARNING in bcm5974_start_traffic/usb_submit_urb ------------[ cut here ]------------ usb 3-1: BOGUS urb xfer, pipe 1 != type 3 WARNING: CPU: 1 PID: 3717 at drivers/usb/core/urb.c:502 usb_submit_urb+0xb07/0x1680 drivers/usb/core/urb.c:502 Modules linked in: CPU: 1 PID: 3717 Comm: udevd Not tainted 5.17.0-rc2-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:usb_submit_urb+0xb07/0x1680 drivers/usb/core/urb.c:502 Code: 4c 24 18 89 4c 24 08 44 89 04 24 e8 d3 64 1e ff 44 8b 04 24 4c 89 e2 48 c7 c7 e0 6e 83 89 8b 4c 24 08 48 89 c6 e8 06 2e 47 03 <0f> 0b 4c 8b 4c 24 18 e9 c0 fa ff ff 48 8d 7b 1c 48 ba 00 00 00 00 RSP: 0018:ffffc90001ab7858 EFLAGS: 00010282 RAX: 0000000000000000 RBX: ffff888070d84000 RCX: 0000000000000000 RDX: 0000000000000001 RSI: ffffffff8941c0a0 RDI: fffff52000356efd RBP: ffff88805ffbdb00 R08: 0000000000000001 R09: ffff8880b9f34187 R10: ffffed10173e6830 R11: 0000000000000001 R12: ffff88801dc9e340 R13: 000000000000000e R14: 0000000000000002 R15: 0000000000000000 FS: 00007f2e9ab6e840(0000) GS:ffff8880b9f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffc1c562960 CR3: 00000000189dd000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: bcm5974_start_traffic drivers/input/mouse/bcm5974.c:799 [inline] bcm5974_start_traffic+0x88/0x110 drivers/input/mouse/bcm5974.c:783 bcm5974_open+0x85/0x130 drivers/input/mouse/bcm5974.c:839 input_open_device+0x155/0x290 drivers/input/input.c:629 evdev_open_device drivers/input/evdev.c:400 [inline] evdev_open+0x488/0x630 drivers/input/evdev.c:487 chrdev_open+0x20f/0x650 fs/char_dev.c:414 do_dentry_open+0x429/0x1040 fs/open.c:824 do_open fs/namei.c:3476 [inline] path_openat+0x9ea/0x2390 fs/namei.c:3609 do_filp_open+0x199/0x3d0 fs/namei.c:3636 do_sys_openat2+0x11e/0x400 fs/open.c:1214 do_sys_open fs/open.c:1230 [inline] __do_sys_openat fs/open.c:1246 [inline] __se_sys_openat fs/open.c:1241 [inline] __x64_sys_openat+0x11b/0x1d0 fs/open.c:1241 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f2e9acc5697 Code: 25 00 00 41 00 3d 00 00 41 00 74 37 64 8b 04 25 18 00 00 00 85 c0 75 5b 44 89 e2 48 89 ee bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 0f 87 85 00 00 00 48 83 c4 68 5d 41 5c c3 0f 1f RSP: 002b:00007fff6223c240 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 000000009ad95a01 RCX: 00007f2e9acc5697 RDX: 0000000000080000 RSI: 00007f2e9cdd6a50 RDI: 00000000ffffff9c RBP: 00007f2e9cdd6a50 R08: 00007f2e9cdd8ea0 R09: 00007f2e9ad95a00 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000080000 R13: 0000000000000000 R14: 00007f2e9b12e150 R15: 0000000000000000