syzbot


WARNING in srcu_invoke_callbacks (2)

Status: upstream: reported on 2025/02/18 17:47
Subsystems: rcu
[Documentation on labels]
Reported-by: syzbot+ae5b16688c0c675b1a1f@syzkaller.appspotmail.com
First crash: 6d11h, last: 6d11h
Discussions (1)
Title Replies (including bot) Last reply
[syzbot] [rcu?] WARNING in srcu_invoke_callbacks (2) 3 (4) 2025/02/19 15:09
Similar bugs (1)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream WARNING in srcu_invoke_callbacks kernel 3 272d 289d 0/28 auto-obsoleted due to no activity on 2024/09/01 23:32

Sample crash report:
------------[ cut here ]------------
WARNING: CPU: 0 PID: 6430 at kernel/rcu/srcutree.c:1798 srcu_invoke_callbacks+0x368/0x3d8
Modules linked in:
CPU: 0 UID: 0 PID: 6430 Comm: kworker/0:3 Not tainted 6.14.0-rc2-syzkaller-ga64dcfb451e2 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
Workqueue: rcu_gp srcu_invoke_callbacks
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : srcu_invoke_callbacks+0x368/0x3d8
lr : srcu_invoke_callbacks+0x1ec/0x3d8 kernel/rcu/srcutree.c:1791
sp : ffff8000a3497960
x29: ffff8000a3497a20 x28: ffff700014692f34 x27: ffff80009c6f6ce8
x26: 0000000000000000 x25: ffff80008b87d7e0 x24: dfff800000000000
x23: fffffdffbf6e3d08 x22: fffffdffbf6e3c80 x21: ffff8000a34979c0
x20: fffffdffbf6e3c40 x19: fffffdffbf6e3d60 x18: 1ffff0001472cf04
x17: ffff80008fbad000 x16: ffff8000804683c4 x15: 0000000000000001
x14: 1ffff000138ded9f x13: ffff8000a3498000 x12: 0000000000000003
x11: 0000000000000000 x10: 0000000000ff0100 x9 : 0000000000000000
x8 : 0000000000000001 x7 : ffff80008044b5b8 x6 : 0000000000000000
x5 : 0000000000000001 x4 : 0000000000000001 x3 : 0000000000000000
x2 : 0000000000000006 x1 : 0000000000000080 x0 : 0000000000000000
Call trace:
 srcu_invoke_callbacks+0x368/0x3d8 (P)
 process_one_work+0x810/0x1638 kernel/workqueue.c:3236
 process_scheduled_works kernel/workqueue.c:3317 [inline]
 worker_thread+0x97c/0xeec kernel/workqueue.c:3398
 kthread+0x65c/0x7b0 kernel/kthread.c:464
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:862
irq event stamp: 206698
hardirqs last  enabled at (206697): [<ffff800080310c38>] __local_bh_enable_ip+0x224/0x44c kernel/softirq.c:394
hardirqs last disabled at (206698): [<ffff80008b7b3b54>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:488
softirqs last  enabled at (206696): [<ffff80008050b40c>] local_bh_enable+0xc/0x2c include/linux/bottom_half.h:32
softirqs last disabled at (206692): [<ffff80008050b3e0>] local_bh_disable+0xc/0x2c include/linux/bottom_half.h:19
---[ end trace 0000000000000000 ]---

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/02/14 17:39 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci a64dcfb451e2 d9a046cf .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in srcu_invoke_callbacks
* Struck through repros no longer work on HEAD.