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: crashed: WARNING in dlfb_submit_urb/usb_submit_urb
run #1: crashed: WARNING in dlfb_submit_urb/usb_submit_urb
run #2: crashed: WARNING in dlfb_submit_urb/usb_submit_urb
run #3: crashed: WARNING in dlfb_submit_urb/usb_submit_urb
run #4: crashed: WARNING in dlfb_submit_urb/usb_submit_urb
run #5: crashed: WARNING in dlfb_submit_urb/usb_submit_urb
run #6: crashed: WARNING in dlfb_submit_urb/usb_submit_urb
run #7: crashed: WARNING in dlfb_submit_urb/usb_submit_urb
run #8: crashed: WARNING in dlfb_submit_urb/usb_submit_urb
run #9: crashed: WARNING in dlfb_submit_urb/usb_submit_urb
run #10: crashed: WARNING in dlfb_submit_urb/usb_submit_urb
run #11: crashed: WARNING in dlfb_submit_urb/usb_submit_urb
run #12: crashed: WARNING in dlfb_submit_urb/usb_submit_urb
run #13: crashed: WARNING in dlfb_submit_urb/usb_submit_urb
run #14: crashed: possible deadlock in fs_reclaim_acquire
run #15: crashed: WARNING in dlfb_submit_urb/usb_submit_urb
run #16: crashed: WARNING in dlfb_submit_urb/usb_submit_urb
run #17: crashed: WARNING in dlfb_submit_urb/usb_submit_urb
run #18: crashed: WARNING in dlfb_submit_urb/usb_submit_urb
run #19: crashed: WARNING in dlfb_submit_urb/usb_submit_urb
testing current HEAD d0ee23f9d78be5531c4b055ea424ed0b489dfe9b
testing commit d0ee23f9d78be5531c4b055ea424ed0b489dfe9b
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: 6907af703a8a8e5278ceab6e6278c771086d4f5ad7492ff890dbcd3b5d67b4a6
all runs: crashed: WARNING in dlfb_submit_urb/usb_submit_urb
revisions tested: 2, total time: 20m8.144361338s (build: 12m30.653904304s, test: 7m4.250749375s)
the crash still happens on HEAD
commit msg: tools: compiler-gcc.h: Guard error attribute use with __has_attribute
crash: WARNING in dlfb_submit_urb/usb_submit_urb
------------[ cut here ]------------
usb 3-1: BOGUS urb xfer, pipe 3 != type 1
WARNING: CPU: 1 PID: 20 at drivers/usb/core/urb.c:502 usb_submit_urb+0xb07/0x1680 drivers/usb/core/urb.c:502
Modules linked in:
CPU: 1 PID: 20 Comm: kworker/1:0 Not tainted 5.15.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: usb_hub_wq hub_event
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 c3 fd 20 ff 44 8b 04 24 4c 89 e2 48 c7 c7 c0 91 60 89 8b 4c 24 08 48 89 c6 e8 82 52 42 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:ffffc90000fbed68 EFLAGS: 00010286
RAX: 0000000000000000 RBX: ffff88801b242000 RCX: 0000000000000000
RDX: 0000000000000001 RSI: 0000000000000004 RDI: fffff520001f7d9f
RBP: ffff88801c2c0300 R08: 0000000000000001 R09: ffff8880b9f1fa9b
R10: ffffed10173e3f53 R11: 3a312d3320627375 R12: ffff88801fa2d180
R13: 000000000000000b R14: 0000000000000003 R15: 0000000000000001
FS:  0000000000000000(0000) GS:ffff8880b9f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffc05f3ff90 CR3: 000000005aaee000 CR4: 00000000001506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 dlfb_submit_urb+0x6c/0x140 drivers/video/fbdev/udlfb.c:1969
 dlfb_set_video_mode+0x1fe2/0x2940 drivers/video/fbdev/udlfb.c:315
 dlfb_ops_set_par+0x275/0x890 drivers/video/fbdev/udlfb.c:1110
 dlfb_usb_probe.cold+0x1091/0x1d05 drivers/video/fbdev/udlfb.c:1732
 usb_probe_interface+0x274/0x6a0 drivers/usb/core/driver.c:396
 call_driver_probe drivers/base/dd.c:517 [inline]
 really_probe+0x1c2/0xb60 drivers/base/dd.c:596
 __driver_probe_device+0x2a6/0x460 drivers/base/dd.c:751
 driver_probe_device+0x44/0x110 drivers/base/dd.c:781
 __device_attach_driver+0x185/0x250 drivers/base/dd.c:898
 bus_for_each_drv+0x11e/0x1a0 drivers/base/bus.c:427
 __device_attach+0x1db/0x410 drivers/base/dd.c:969
 bus_probe_device+0x19d/0x250 drivers/base/bus.c:487
 device_add+0xa5c/0x1e10 drivers/base/core.c:3359
 usb_set_configuration+0xc1d/0x1710 drivers/usb/core/message.c:2170
 usb_generic_driver_probe+0x74/0xa0 drivers/usb/core/generic.c:238
 usb_probe_device+0x95/0x240 drivers/usb/core/driver.c:293