ci2 starts bisection 2023-02-19 00:47:51.896839215 +0000 UTC m=+9037.967959127
bisecting fixing commit since cbfa1702aaf69b2311ea1b35e04f113c48368c67
building syzkaller on 4a77ae0bdc5cd75ebe88ce7c896aae6bbf457a29
ensuring issue is reproducible on original commit cbfa1702aaf69b2311ea1b35e04f113c48368c67

testing commit cbfa1702aaf69b2311ea1b35e04f113c48368c67 gcc
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: c155036f6063ab1297ab418e900da9caf80767eb1658571730a15b0b6ed216ba
run #0: crashed: general protection fault in vgem_fence_attach_ioctl
run #1: crashed: general protection fault in vgem_fence_attach_ioctl
run #2: crashed: general protection fault in vgem_fence_attach_ioctl
run #3: crashed: general protection fault in vgem_fence_attach_ioctl
run #4: crashed: general protection fault in vgem_fence_attach_ioctl
run #5: crashed: general protection fault in vgem_fence_attach_ioctl
run #6: crashed: general protection fault in vgem_fence_attach_ioctl
run #7: crashed: WARNING in dma_buf_release
run #8: crashed: general protection fault in vgem_fence_attach_ioctl
run #9: crashed: general protection fault in vgem_fence_attach_ioctl
run #10: crashed: general protection fault in vgem_fence_attach_ioctl
run #11: crashed: KASAN: use-after-free Read in reservation_object_test_signaled_rcu
run #12: crashed: general protection fault in vgem_fence_attach_ioctl
run #13: crashed: WARNING in dma_buf_release
run #14: crashed: WARNING in dma_buf_release
run #15: crashed: general protection fault in vgem_fence_attach_ioctl
run #16: crashed: KASAN: use-after-free Read in __ww_mutex_lock
run #17: crashed: WARNING in dma_buf_release
run #18: crashed: WARNING in dma_buf_release
run #19: OK
testing current HEAD a8ad60f2af5884921167e8cede5784c7849884b2
testing commit a8ad60f2af5884921167e8cede5784c7849884b2 gcc
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 40b1c009ead5fe75eeb3b92371d989dd0813290a5adb19ce0989c8d6cecb104c
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 34m46.961701915s (build: 16m11.936136178s, test: 16m9.261410599s)
the crash still happens on HEAD
commit msg: Linux 4.14.305
crash: unregister_netdevice: waiting for DEV to become free
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1
Bluetooth: hci0 command 0x0409 tx timeout
Bluetooth: hci0 command 0x041b tx timeout
Bluetooth: hci0 command 0x040f tx timeout
Bluetooth: hci0 command 0x0419 tx timeout