Messages in this thread | | | Date | Fri, 5 Dec 2003 13:29:43 +0100 (CET) | From | venom@sns ... | Subject | Re: PROBLEM: 2.6test11 kernel panic on "head -1 /proc/net/tcp" |
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reproduced without ppp activated, but with lan ipv4 connection.
kernel 2.6.0-test11.
the system freexed, but unfortunatelly I was under X11, and no oops was saved in my logs.
Luigi
On Fri, 5 Dec 2003 lkml-031128@amos.mailshell.com wrote:
> Date: Fri, 05 Dec 2003 13:23:15 +0200 > From: lkml-031128@amos.mailshell.com > To: linux-kernel@vger.kernel.org > Subject: Re: PROBLEM: 2.6test11 kernel panic on "head -1 /proc/net/tcp" > > OGAWA Hirofumi wrote: > > lkml-031128@amos.mailshell.com writes: > > > > > >>After I added Ogawa's line, "head -1 /proc/net/tcp" stopped > >>freezing my machine but PPP failed to work. > >> > >>Also after adding Ogawa's line, PPP works fine (as it is now, as > >>I write this message) as long as I don't try "head -1 /proc/net/tcp" > >>after boot. If I'll try "head -1 /proc/net/tcp" now PPP will stop > >>working. > > > > > > Can you reproduce the fail of PPP? I couldn't reproduce it. > > What reason is the fail of PPP? (the "debug" option of pppd may be helpful) > > Sorry. I just tried: > > 1. From a multi-user mode, after an uptime of 5 days (test11 with your > fix). > 2. killed the ppp daemon (/etc/init.d/ppp stop). Made sure the ppp0 > interface is down. > 3. did "head -1 /proc/net/tcp" and "cat /proc/net/tcp". Passed fine. > 4. re-startted ppp daemon. > 5. System is fine. No kernel errors. PPP works flowlessly. > > So I think my linking of PPP to the fix was wrong. Maybe the PPP failure > was unrelated to this. > > > > > Of course, the following message is easy reproducible. But it's > > debugging message, not the real problem. And probably it's unrelated > > to the fail of PPP. > > > > > >>>>>Badness in local_bh_enable at kernel/softirq.c:121 > >>>>>Call Trace: > >>>>> [<c011df25>] local_bh_enable+0x85/0x90 > >>>>> [<c02315e2>] ppp_async_push+0xa2/0x180 > >>>>> [<c0230efd>] ppp_asynctty_wakeup+0x2d/0x60 > >>>>> [<c0202638>] pty_unthrottle+0x58/0x60 > >>>>> [<c01ff0fd>] check_unthrottle+0x3d/0x40 > >>>>> [<c01ff1a3>] n_tty_flush_buffer+0x13/0x60 > >>>>> [<c0202a47>] pty_flush_buffer+0x67/0x70 > >>>>> [<c01fba41>] do_tty_hangup+0x3f1/0x460 > > > - > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ >
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