linux-kernel - WARNING: at drivers/tty/tty_ldisc.c:766 tty_ldisc

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Message-ID: <20110828131502.GA2580@redhat.com>
Date:	Sun, 28 Aug 2011 09:15:03 -0400
From:	Dave Jones <davej@...hat.com>
To:	Linux Kernel <linux-kernel@...r.kernel.org>
Subject: WARNING: at drivers/tty/tty_ldisc.c:766 tty_ldisc_reinit+0x52/0x90()
 [3.0]

Just saw this on a box that was recieving an rsync while I ssh'd in.
The ssh session hung.

(version says 2.6.40, it's 3.0 in all but name)

	Dave

WARNING: at drivers/tty/tty_ldisc.c:766 tty_ldisc_reinit+0x52/0x90()
Hardware name:         
Modules linked in: nfsd nfs lockd fscache auth_rpcgss nfs_acl sunrpc p4_clockmod freq_table speedstep_lib nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack microcode serio_raw snd_hda_codec_realtek i2c_i801 snd_hda_intel snd_hda_codec iTCO_wdt snd_hwdep iTCO_vendor_support snd_seq snd_seq_device snd_pcm snd_timer snd r8169 soundcore mii snd_page_alloc pata_sil680 i915 drm_kms_helper drm i2c_algo_bit i2c_core video [last unloaded: mperf]
Pid: 1381, comm: sshd Not tainted 2.6.40-4.fc15.x86_64.debug #1
Call Trace:
 [<ffffffff81058e74>] warn_slowpath_common+0x83/0x9b
 [<ffffffff81058ea6>] warn_slowpath_null+0x1a/0x1c
 [<ffffffff812f8e18>] tty_ldisc_reinit+0x52/0x90
 [<ffffffff812f9415>] tty_ldisc_hangup+0x13f/0x1e1
 [<ffffffff812f21b6>] __tty_hangup+0x111/0x35f
 [<ffffffff812f2429>] tty_vhangup+0xe/0x10
 [<ffffffff812faade>] pty_close+0x128/0x132
 [<ffffffff812f3404>] tty_release+0x1d8/0x4dc
 [<ffffffff81087a2e>] ? lock_release_holdtime.part.8+0x6b/0x72
 [<ffffffff8100eebf>] ? native_sched_clock+0x34/0x36
 [<ffffffff8113cdb2>] fput+0x127/0x1f5
 [<ffffffff81139d90>] filp_close+0x70/0x7b
 [<ffffffff81139e91>] sys_close+0xf6/0x13b
 [<ffffffff814fdf02>] system_call_fastpath+0x16/0x1b
---[ end trace 639fa37f00e1dc5b ]---

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