ci2 starts bisection 2022-12-03 16:58:57.655649476 +0000 UTC m=+169831.297626378
bisecting fixing commit since ab2d1d40a128f4b8f8857ae3ecd312c79b3ff8a1
building syzkaller on 6bdac76629d4d80501671c0c312d6b81411481e7
ensuring issue is reproducible on original commit ab2d1d40a128f4b8f8857ae3ecd312c79b3ff8a1

testing commit ab2d1d40a128f4b8f8857ae3ecd312c79b3ff8a1 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: 7d80d91b2bd60edbf6aa6d520118dbe5cb7c16895ec758b5727fbbcf9d975895
run #0: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return
run #1: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return
run #2: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return
run #3: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return
run #4: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return
run #5: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return
run #6: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return
run #7: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return
run #8: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return
run #9: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return
run #10: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return
run #11: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return
run #12: OK
run #13: OK
run #14: OK
run #15: OK
run #16: OK
run #17: OK
run #18: OK
run #19: OK
testing current HEAD 25af5a11f1dac7596cc1d92e88f7fad181a3c5b1
testing commit 25af5a11f1dac7596cc1d92e88f7fad181a3c5b1 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: 2c2f57226a1bb404157ddb4603249d12667e56ae6b7b55ad8d5cfaa40b44357c
run #0: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return
run #1: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return
run #2: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return
run #3: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return
run #4: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return
run #5: OK
run #6: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return
run #7: OK
run #8: OK
run #9: OK
revisions tested: 2, total time: 35m1.623855222s (build: 17m16.072271723s, test: 17m9.844503846s)
the crash still happens on HEAD
commit msg: Merge 5.10.155 into android12-5.10-lts
crash: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return
BUG: using smp_processor_id() in preemptible [00000000] code: dhcpcd/208
caller is debug_smp_processor_id+0x17/0x20 lib/smp_processor_id.c:59
CPU: 1 PID: 208 Comm: dhcpcd Not tainted 5.10.155-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack_lvl+0x17b/0x1f4 lib/dump_stack.c:118
 dump_stack+0x10/0x12 lib/dump_stack.c:135
 check_preemption_disabled+0xf7/0x100 lib/smp_processor_id.c:48
 debug_smp_processor_id+0x17/0x20 lib/smp_processor_id.c:59
 usbnet_skb_return+0x42/0x210 drivers/net/usb/usbnet.c:307
 usbnet_resume_rx+0x48/0x80 drivers/net/usb/usbnet.c:680
 usbnet_change_mtu+0x1f3/0x5a0 drivers/net/usb/usbnet.c:393
 __dev_set_mtu net/core/dev.c:8583 [inline]
 dev_set_mtu_ext+0x337/0x700 net/core/dev.c:8636
 dev_set_mtu+0x9d/0x140 net/core/dev.c:8660
 dev_ifsioc+0x41b/0x8a0 net/core/dev_ioctl.c:237
 dev_ioctl+0x15b/0x900 net/core/dev_ioctl.c:481
 sock_do_ioctl+0x1ee/0x2c0 net/socket.c:1071
 sock_ioctl+0x3f6/0x570 net/socket.c:1188
 vfs_ioctl fs/ioctl.c:48 [inline]
 __do_sys_ioctl fs/ioctl.c:753 [inline]
 __se_sys_ioctl+0xc7/0x110 fs/ioctl.c:739
 __x64_sys_ioctl+0x76/0x80 fs/ioctl.c:739
 do_syscall_64+0x34/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xc6
RIP: 0033:0x7f58c17350e7
Code: 3c 1c e8 1c ff ff ff 85 c0 79 87 49 c7 c4 ff ff ff ff 5b 5d 4c 89 e0 41 5c c3 66 0f 1f 84 00 00 00 00 00 b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 61 9d 0c 00 f7 d8 64 89 01 48
RSP: 002b:00007ffe582fc588 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f58c16476c8 RCX: 00007f58c17350e7
RDX: 00007ffe5830c778 RSI: 0000000000008922 RDI: 0000000000000012
RBP: 00007ffe5831c928 R08: 00007ffe5830c738 R09: 00007ffe5830c6e8
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe5830c778 R14: 0000000000000028 R15: 0000000000008922