* [Bug 837] New: PPP async spin_lock_bh badness
@ 2003-06-20 20:49 Martin J. Bligh
0 siblings, 0 replies; only message in thread
From: Martin J. Bligh @ 2003-06-20 20:49 UTC (permalink / raw)
To: linux-kernel
http://bugme.osdl.org/show_bug.cgi?id=837
Summary: PPP async spin_lock_bh badness
Kernel Version: 2.5.72
Status: NEW
Severity: normal
Owner: acme@conectiva.com.br
Submitter: shemminger@osdl.org
Distribution: Redhat 8.0
Hardware Environment: 1 CPU PIII
Software Environment:
Problem Description: PPP async driver locking issue
Steps to reproduce:
* Run user mode PPP over Ethernet which runs PPP over pseudo-tty.
* Get warning:
Badness in local_bh_enable at kernel/softirq.c:109
Call Trace:
[<c011bb5e>] local_bh_enable+0x7e/0x80
[<f8a5bc00>] ppp_async_push+0x90/0x180 [ppp_async]
[<c0126a38>] rcu_process_callbacks+0xc8/0xf0
[<f8a5b521>] ppp_asynctty_wakeup+0x31/0x60 [ppp_async]
[<c01ca8d7>] pty_unthrottle+0x57/0x60
[<c01c74ec>] check_unthrottle+0x3c/0x40
[<c01c7564>] n_tty_flush_buffer+0x14/0x60
[<c01cac86>] pty_flush_buffer+0x66/0x70
[<c01c40f7>] do_tty_hangup+0x3b7/0x410
[<c01c54dd>] release_dev+0x67d/0x6c0
[<c0138c4e>] zap_pmd_range+0x4e/0x70
[<c0138cbe>] unmap_page_range+0x4e/0x80
[<c01c5891>] tty_release+0x11/0x20
[<c0147c8e>] __fput+0xee/0x100
[<c01464db>] filp_close+0x4b/0x80
[<c01197ac>] put_files_struct+0x7c/0xf0
[<c011a296>] do_exit+0x116/0x330
[<c011a4e5>] sys_exit+0x15/0x20
[<c01092df>] syscall_call+0x7/0xb
^ permalink raw reply [flat|nested] only message in thread
only message in thread, other threads:[~2003-06-20 20:47 UTC | newest]
Thread overview: (only message) (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2003-06-20 20:49 [Bug 837] New: PPP async spin_lock_bh badness Martin J. Bligh
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox