ci2 starts bisection 2023-05-03 20:20:00.620199368 +0000 UTC m=+26874.490801173
bisecting fixing commit since e3a87a10f2591f296d1a50c5af6820e2181d564a
building syzkaller on fbf0499acc828df26995835e51d83c3a0117e716
ensuring issue is reproducible on original commit e3a87a10f2591f296d1a50c5af6820e2181d564a

testing commit e3a87a10f2591f296d1a50c5af6820e2181d564a gcc
compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: f021e74a798ba536e71434160cae5e7b4bede68f4e24988270bfe5d7c11badaa
run #0: crashed: WARNING in timer_wait_running
run #1: crashed: INFO: rcu detected stall in corrupted
run #2: crashed: INFO: rcu detected stall in corrupted
run #3: crashed: INFO: rcu detected stall in corrupted
run #4: crashed: INFO: rcu detected stall in corrupted
run #5: crashed: INFO: rcu detected stall in corrupted
run #6: crashed: INFO: rcu detected stall in corrupted
run #7: crashed: INFO: rcu detected stall in corrupted
run #8: crashed: WARNING in timer_wait_running
run #9: crashed: INFO: rcu detected stall in corrupted
run #10: crashed: INFO: rcu detected stall in corrupted
run #11: crashed: INFO: rcu detected stall in corrupted
run #12: crashed: INFO: rcu detected stall in corrupted
run #13: crashed: INFO: rcu detected stall in corrupted
run #14: crashed: INFO: rcu detected stall in corrupted
run #15: crashed: INFO: rcu detected stall in corrupted
run #16: crashed: INFO: rcu detected stall in corrupted
run #17: crashed: WARNING in timer_wait_running
run #18: crashed: WARNING in timer_wait_running
run #19: crashed: WARNING in timer_wait_running
testing current HEAD ca48fc16c49388400eddd6c6614593ebf7c7726a
testing commit ca48fc16c49388400eddd6c6614593ebf7c7726a gcc
compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: 4f7c578e860e3bdacb26f3a61e001615d1ce51266143788a671065f4388e9c38
run #0: crashed: INFO: rcu detected stall in corrupted
run #1: crashed: INFO: rcu detected stall in corrupted
run #2: crashed: INFO: rcu detected stall in corrupted
run #3: crashed: INFO: rcu detected stall in corrupted
run #4: crashed: INFO: rcu detected stall in corrupted
run #5: crashed: WARNING in timer_wait_running
run #6: crashed: WARNING in timer_wait_running
run #7: crashed: WARNING in timer_wait_running
run #8: crashed: WARNING in timer_wait_running
run #9: crashed: WARNING in timer_wait_running
revisions tested: 2, total time: 1h8m51.848062865s (build: 57m57.90323208s, test: 10m21.06087452s)
the crash still happens on HEAD
commit msg: Linux 6.1.27
crash: WARNING in timer_wait_running
------------[ cut here ]------------
WARNING: CPU: 1 PID: 20028 at kernel/time/posix-timers.c:849 timer_wait_running+0x14c/0x170 kernel/time/posix-timers.c:854
Modules linked in:
CPU: 1 PID: 20028 Comm: syz-executor.5 Not tainted 6.1.27-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023
RIP: 0010:timer_wait_running+0x14c/0x170 kernel/time/posix-timers.c:849
Code: c7 c2 80 88 ed 89 e8 c3 e0 f0 ff e8 ae 43 f9 ff e8 d9 fb ff ff 44 89 f7 4c 89 fe 5b 41 5c 41 5d 41 5e 41 5f 5d e9 94 97 ff ff <0f> 0b eb 9a 89 e9 80 e1 07 80 c1 03 38 c1 0f 8c ef fe ff ff 48 89
RSP: 0018:ffffc9000b8e7d08 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffffffff89ed8e78 RCX: 0000000000000001
RDX: dffffc0000000000 RSI: ffffffff89eb6fa0 RDI: 0000000000000001
RBP: ffff88801da794fc R08: dffffc0000000000 R09: ffffed1003b4f297
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88801da79490
R13: dffffc0000000000 R14: 0000000000000000 R15: ffffc9000b8e7d80
FS:  00007fa2bcd82700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007effae588698 CR3: 000000001cf05000 CR4: 00000000003526e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 do_timer_settime+0x207/0x2b0 kernel/time/posix-timers.c:929
 __do_sys_timer_settime kernel/time/posix-timers.c:952 [inline]
 __se_sys_timer_settime kernel/time/posix-timers.c:938 [inline]
 __x64_sys_timer_settime+0x16b/0x1f0 kernel/time/posix-timers.c:938
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fa2bc08c0f9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fa2bcd82168 EFLAGS: 00000246 ORIG_RAX: 00000000000000df
RAX: ffffffffffffffda RBX: 00007fa2bc1ac050 RCX: 00007fa2bc08c0f9
RDX: 0000000020000080 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007fa2bc0e7b39 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd545c99af R14: 00007fa2bcd82300 R15: 0000000000022000
 </TASK>