From: Hillf Danton <hdanton@sina.com>
To: syzbot <syzbot+2b5fbaaa4280010beda7@syzkaller.appspotmail.com>
Cc: linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com
Subject: Re: [syzbot] [net?] INFO: rcu detected stall in sock_write_iter (3)
Date: Tue, 7 May 2024 20:34:56 +0800 [thread overview]
Message-ID: <20240507123456.2204-1-hdanton@sina.com> (raw)
In-Reply-To: <0000000000000612fa0617dc20f6@google.com>
On Tue, 07 May 2024 05:14:17 -0700
> syzbot found the following issue on:
>
> HEAD commit: 7367539ad4b0 Merge tag 'cxl-fixes-6.9-rc7' of git://git.ke..
> git tree: upstream
> C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1379d9df180000
#syz test https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 7367539ad4b0
--- x/net/sched/sch_taprio.c
+++ y/net/sched/sch_taprio.c
@@ -980,7 +980,9 @@ first_run:
rcu_assign_pointer(q->current_entry, next);
spin_unlock(&q->current_entry_lock);
- hrtimer_set_expires(&q->advance_timer, end_time);
+ hrtimer_set_expires(&q->advance_timer,
+ ktime_add(timer->base->get_time(),
+ ns_to_ktime(NSEC_PER_USEC *200)));
rcu_read_lock();
__netif_schedule(sch);
--
next prev parent reply other threads:[~2024-05-07 12:35 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-05-07 12:14 [syzbot] [net?] INFO: rcu detected stall in sock_write_iter (3) syzbot
2024-05-07 12:34 ` Hillf Danton [this message]
2024-05-07 13:14 ` syzbot
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