ci starts bisection 2022-08-22 20:51:47.181709097 +0000 UTC m=+276613.817743491
bisecting fixing commit since 1d41d2e82623b40ee27811fe9ea38bafe2e722e9
building syzkaller on 8b9ca619df135211a89cc19719f2705d0016045d
testing commit 1d41d2e82623b40ee27811fe9ea38bafe2e722e9
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: 3fa198224594d1f5eb47c48640df7b64144e5aad4ddc788628b0300dad9c134a
all runs: crashed: WARNING in j1939_session_deactivate
testing current HEAD 072e51356cd5a4a1c12c1020bc054c99b98333df
testing commit 072e51356cd5a4a1c12c1020bc054c99b98333df
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: 142536e7e35a2947dcd64c4d4e25a8f1d3117b820c331a43c69d28f18cb20652
all runs: crashed: WARNING in j1939_session_deactivate_activate_next
revisions tested: 2, total time: 20m32.978859441s (build: 13m2.134861866s, test: 6m37.508974476s)
the crash still happens on HEAD
commit msg: Merge tag 'nfs-for-5.20-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs
crash: WARNING in j1939_session_deactivate_activate_next
vcan0: j1939_tp_rxtimer: 0xffff88801f34ec00: rx timeout, send abort
vcan0: j1939_xtp_rx_abort_one: 0xffff888075ce9000: 0x00000: (3) A timeout occurred and this is the connection abort to close the session.
------------[ cut here ]------------
WARNING: CPU: 0 PID: 15 at net/can/j1939/transport.c:1096 j1939_session_deactivate net/can/j1939/transport.c:1096 [inline]
WARNING: CPU: 0 PID: 15 at net/can/j1939/transport.c:1096 j1939_session_deactivate_activate_next+0x7b/0xa8 net/can/j1939/transport.c:1106
Modules linked in:
CPU: 0 PID: 15 Comm: ksoftirqd/0 Not tainted 6.0.0-rc2-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022
RIP: 0010:j1939_session_deactivate net/can/j1939/transport.c:1096 [inline]
RIP: 0010:j1939_session_deactivate_activate_next+0x7b/0xa8 net/can/j1939/transport.c:1106
Code: e0 2a 48 c1 ea 03 8a 14 02 4c 89 e8 83 e0 07 83 c0 03 38 d0 7c 0c 84 d2 74 08 4c 89 ef e8 d4 e0 13 f9 8b 45 28 83 f8 01 77 02 <0f> 0b 48 89 ef e8 12 b3 f1 fe 4c 89 e7 41 89 c5 e8 67 a1 05 00 45
RSP: 0018:ffffc900001479d8 EFLAGS: 00010246
RAX: 0000000000000001 RBX: 0000000000000003 RCX: ffffffff889d2060
RDX: 1ffff1100eb9d200 RSI: 0000000000000004 RDI: ffff888075ce9028
RBP: ffff888075ce9000 R08: 0000000000000000 R09: ffff888075ce902b
R10: ffffed100eb9d205 R11: 0000000000000001 R12: ffff888015919070
R13: ffff888075ce9028 R14: ffff888067c39018 R15: ffffffff8a171880
FS:  0000000000000000(0000) GS:ffff8880b9e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f9b2fd9c028 CR3: 000000002386b000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 j1939_xtp_rx_abort_one.cold+0x1cb/0x2f1 net/can/j1939/transport.c:1346
 j1939_xtp_rx_abort net/can/j1939/transport.c:1357 [inline]
 j1939_tp_cmd_recv net/can/j1939/transport.c:2106 [inline]
 j1939_tp_recv+0x86a/0x9f0 net/can/j1939/transport.c:2139
 j1939_can_recv+0x573/0x7c0 net/can/j1939/main.c:108
 deliver net/can/af_can.c:574 [inline]
 can_rcv_filter+0x4ce/0x7b0 net/can/af_can.c:608
 can_receive+0x2ae/0x4a0 net/can/af_can.c:665
 can_rcv+0xce/0x160 net/can/af_can.c:696
 __netif_receive_skb_one_core+0x104/0x180 net/core/dev.c:5485
 process_backlog+0x2e4/0x6d0 net/core/dev.c:5927
 __napi_poll+0x96/0x510 net/core/dev.c:6511
 napi_poll net/core/dev.c:6578 [inline]
 net_rx_action+0x886/0xc70 net/core/dev.c:6689
 __do_softirq+0x1d3/0x9c6 kernel/softirq.c:571
 run_ksoftirqd kernel/softirq.c:934 [inline]
 run_ksoftirqd+0x2d/0x60 kernel/softirq.c:926
 smpboot_thread_fn+0x548/0x8c0 kernel/smpboot.c:164
 kthread+0x294/0x330 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>