Messages in this thread | | | Date | Mon, 01 Dec 2003 23:36:20 +0200 | Subject | Re: PROBLEM: 2.6test11 kernel panic on "head -1 /proc/net/tcp" | From | lkml-031128@amos ... |
| |
Hi Jonathan,
I'm not sure I understand - what exactly froze your machine? My machine used to freeze on "head -1 /proc/net/tcp" until I added that one-line suggested by Mr. Ogawa.
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.
So which situation did you confirm to reproduce?
Thanks,
--Amos
Jonathan Fors wrote: > Thomas Cataldo wrote: > >> On Sat, 2003-11-29 at 18:00, lkml-031128@amos.mailshell.com wrote: >> >> >>> Partially. It seems to trigger ppp failure later. >>> >> >> [...] >> >> >>> This gives me tons of messages like the following: >>> >>> 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 >>> [<c01fcfbc>] release_dev+0x62c/0x660 >>> [<c013dfab>] zap_pmd_range+0x4b/0x70 >>> [<c013e013>] unmap_page_range+0x43/0x70 >>> [<c01622a2>] dput+0x22/0x210 >>> [<c01fd38a>] tty_release+0x2a/0x60 >>> [<c014ccf8>] __fput+0x108/0x120 >>> [<c014b359>] filp_close+0x59/0x90 >>> [<c011b874>] put_files_struct+0x54/0xc0 >>> [<c011c47d>] do_exit+0x15d/0x3e0 >>> [<c011c79a>] do_group_exit+0x3a/0xb0 >>> [<c01091b7>] syscall_call+0x7/0xb >>> >> >> >> I just looked at my logs and realised I add a similar oops in my log. It >> happened a few days ago on 2.6.0-test10 (I failed to notice because >> everything seems to work fine). >> >> Here is what I have : >> >> Badness in local_bh_enable at kernel/softirq.c:121 >> Call Trace: >> [<c01251d3>] local_bh_enable+0x93/0xa0 >> [<f997dced>] ppp_async_push+0xbd/0x1b0 [ppp_async] >> [<f997d58e>] ppp_asynctty_wakeup+0x2e/0x70 [ppp_async] >> [<c01cc619>] pty_unthrottle+0x59/0x60 >> [<c01c8c1b>] check_unthrottle+0x3b/0x40 >> [<c01c8cd3>] n_tty_flush_buffer+0x13/0x60 >> [<c01cca2d>] pty_flush_buffer+0x6d/0x70 >> [<c01cc9c0>] pty_flush_buffer+0x0/0x70 >> [<c01c4ee3>] do_tty_hangup+0x4e3/0x580 >> [<c01c6752>] release_dev+0x742/0x780 >> [<c013f82c>] __pagevec_free+0x1c/0x30 >> [<c014487e>] release_pages+0x7e/0x1a0 >> [<c0171bb1>] dput+0x31/0x270 >> [<c01c6b7b>] tty_release+0x3b/0x90 >> [<c015a3db>] __fput+0x10b/0x120 >> [<c01588e9>] filp_close+0x59/0x90 >> [<c0122634>] put_files_struct+0x64/0xd0 >> [<c01233cf>] do_exit+0x19f/0x4c0 >> [<c01237c2>] do_group_exit+0x42/0xe0 >> [<c0109539>] sysenter_past_esp+0x52/0x71 >> >> The previous line in my logs was from my TI acx100 wifi card. It runs >> with the experimental driver from http://acx100.sf.net. So if this oops >> can be caused by bad driver behaviour, please ignore. >> >> I am using ppp with pppoe on a ne2k-pci network board. >> >> I have smp (dual-p3) and preemption enabled. The kernel is compiled with >> gcc 3.3.1-2 from debian sid. >> >> >> - >> 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/ >> >> >> >> > I can verify that one, tried it on my pentium 2 and it froze the > machine (i was NOT root then) . Had to SysRQ the box to get up again. > > My machine is: > Dell Optiplek Gx1 > 350MhZ Pentium 2 Deschutes > 190 MB Pc100 SDRAM > Gentoo Linux 1.4 > GCC 3.2.3 > Kernel: 2.6.0-test11 modified only with bootsplash patch > Preempt ENABLED > > > > ---------- Your email is protected by Mailshell ---------- To block spam > or change delivery options: > http://www.mailshell.com/control.html?a=blue1spxa32bf9syihlatspyammgqquwzqnwz8k > > > ReturnPath.net http://rd.mailshell.com/ad481 > Earn up to $3 for each of your friends who signs up with Mailshell! > http://rd.mailshell.com/sp5
- 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/
| |