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From: Al Viro <viro@ZenIV.linux.org.uk>
To: Jiri Slaby <jirislaby@gmail.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
	linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org
Subject: Re: fault in __d_lookup [Was: 2.6.25-mm1]
Date: Mon, 21 Apr 2008 10:45:15 +0100	[thread overview]
Message-ID: <20080421094515.GR27459@ZenIV.linux.org.uk> (raw)
In-Reply-To: <480C6064.10801@gmail.com>

On Mon, Apr 21, 2008 at 11:37:40AM +0200, Jiri Slaby wrote:
> On 04/21/2008 11:06 AM, Al Viro wrote:
> >On Mon, Apr 21, 2008 at 10:31:40AM +0200, Jiri Slaby wrote:
> >
> >        hlist_for_each_entry_rcu(dentry, node, head, d_hash) {
> >                struct qstr *qstr;
> >
> >                if (dentry->d_name.hash != hash)
> >                        continue;
> >
> >walking into node == (struct hlist_node *)0x00f0000000000000...
> 
> Yup, true, In the last oops I stuck on memcmp few lines below.
> 
> BTW. it's 100% reproducible after it happens once, but fixable by reboot. 
> Any tests I should run (memtest, some printks sticked anywhere)?

Well, if list has such turd in it, you'll certainly hit it every time
you walk that list, so 100% reproducible is not surprising.

How well is it reproducible from fresh boot?

  reply	other threads:[~2008-04-21  9:45 UTC|newest]

Thread overview: 109+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-04-18  8:47 2.6.25-mm1 Andrew Morton
2008-04-18 11:26 ` [PATCH] 2.6.25-mm1 - Build Failure with PWRficient onchip memory controller driver Kamalesh Babulal
2008-04-18 13:02 ` StackProtector Oopses - Re: 2.6.25-mm1 Reuben Farrelly
2008-04-18 13:36   ` Ingo Molnar
2008-04-18 13:51     ` Arjan van de Ven
2008-04-18 14:41       ` Reuben Farrelly
2008-04-18 14:49     ` Reuben Farrelly
2008-04-21 15:06       ` Ingo Molnar
2008-04-22  1:48         ` Arjan van de Ven
2008-04-22  2:04           ` Valdis.Kletnieks
2008-04-22  8:34           ` Ingo Molnar
2008-04-22 14:29             ` Arjan van de Ven
2008-04-18 16:40 ` 2.6.25-mm1 (build error: driver core) Randy Dunlap
2008-04-18 16:56   ` Greg KH
2008-04-18 18:38     ` Dan Williams
2008-04-18 16:45 ` 2.6.25-mm1 (build error: trace selftest) Randy Dunlap
2008-04-18 20:14 ` 2.6.25-mm1 Valdis.Kletnieks
2008-04-18 23:09 ` 2.6.25-mm1: orphaned files after build Alexey Dobriyan
2008-04-19  2:13 ` 2.6.25-mm1 Joseph Fannin
2008-04-19  3:02   ` 2.6.25-mm1 Andrew Morton
2008-04-19  4:14     ` 2.6.25-mm1 Dmitry Torokhov
2008-04-19  4:29       ` 2.6.25-mm1 Andrew Morton
2008-04-19  6:33         ` 2.6.25-mm1 Joseph Fannin
2008-04-21 11:07         ` 2.6.25-mm1 Takashi Iwai
2008-04-21 17:44           ` 2.6.25-mm1 (snd-pcsp causes driver conflict) Stas Sergeev
2008-04-22 10:09             ` Takashi Iwai
2008-04-22 17:54               ` Stas Sergeev
2008-04-23  8:55                 ` Takashi Iwai
2008-04-23 14:14                   ` Takashi Iwai
2008-04-21 19:45           ` 2.6.25-mm1 Stas Sergeev
2008-04-21 14:06         ` 2.6.25-mm1 Takashi Iwai
2008-04-21 17:55           ` 2.6.25-mm1 (snd-pcsp doesn't like DEBUG_PAGEALLOC) Stas Sergeev
2008-04-22 10:13             ` Takashi Iwai
2008-04-22 14:01               ` Dmitry Torokhov
2008-04-22 16:42                 ` Stas Sergeev
2008-04-22 18:31               ` Stas Sergeev
2008-04-23  8:49                 ` Takashi Iwai
2008-04-23 14:18                   ` Takashi Iwai
2008-04-23 20:02                   ` Stas Sergeev
2008-04-24  9:40                     ` Takashi Iwai
2008-04-25  3:51                       ` Stas Sergeev
2008-04-25  6:28                         ` Takashi Iwai
2008-04-25 16:45                           ` Stas Sergeev
2008-04-25 16:51                             ` Takashi Iwai
2008-04-25 17:25                               ` Stas Sergeev
2008-05-02 16:44                               ` Takashi Iwai
2008-05-02 16:57                                 ` Stas Sergeev
2008-05-06 10:20                                   ` Takashi Iwai
2008-05-06 16:51                                     ` Stas Sergeev
2008-04-25 18:09                             ` Dmitry Torokhov
2008-04-25 18:31                               ` Stas Sergeev
2008-04-25 18:37                                 ` Dmitry Torokhov
2008-04-19  2:25 ` 2.6.25-mm1 Joseph Fannin
2008-04-19  3:08   ` 2.6.25-mm1 Andrew Morton
2008-04-19  3:10 ` 2.6.25-mm1 Joseph Fannin
2008-04-19  3:29   ` 2.6.25-mm1 Andrew Morton
2008-04-19 13:25     ` 2.6.25-mm1 Andres Salomon
2008-04-19 17:38       ` 2.6.25-mm1 Andrew Morton
2008-04-19 17:50         ` 2.6.25-mm1 Andres Salomon
2008-04-21 14:56           ` 2.6.25-mm1 Jordan Crouse
2008-04-21 15:05             ` 2.6.25-mm1 Andres Salomon
2008-04-21 15:12               ` 2.6.25-mm1 Jordan Crouse
2008-04-19 17:39       ` [PATCH 1/2] OLPC: Add support for calling into Open Firmware Andres Salomon
2008-04-20 10:34         ` Yinghai Lu
2008-04-20 12:07           ` H. Peter Anvin
2008-04-20 17:59             ` Andres Salomon
2008-04-20 18:42               ` Mitch Bradley
2008-04-20 19:12                 ` H. Peter Anvin
2008-04-21  3:39                   ` Mitch Bradley
2008-04-21  4:54                     ` Yinghai Lu
2008-04-21  8:22                       ` Mitch Bradley
2008-04-21 11:36                     ` H. Peter Anvin
2008-04-21 13:09                       ` H. Peter Anvin
2008-04-21 13:13                       ` H. Peter Anvin
2008-04-21 13:19                       ` H. Peter Anvin
2008-04-21 15:05                     ` Jordan Crouse
2008-04-21 14:58                       ` H. Peter Anvin
2008-04-20 19:13               ` [PATCH 1/2] " H. Peter Anvin
2008-04-21  3:09           ` Mitch Bradley
2008-04-21  3:15             ` Yinghai Lu
2008-04-21  4:05               ` Mitch Bradley
2008-04-21  4:26                 ` David Miller
2008-04-21  4:50                 ` Yinghai Lu
2008-04-21  8:03                   ` Mitch Bradley
2008-04-21 14:24                 ` Andres Salomon
2008-04-21 15:54                   ` David Woodhouse
2008-04-21 16:57                     ` H. Peter Anvin
2008-04-21 18:54                       ` David Woodhouse
2008-04-21 17:03                     ` Andres Salomon
2008-04-21 19:18                       ` David Woodhouse
2008-04-21 19:46                         ` Andres Salomon
2008-04-21 20:25                           ` David Woodhouse
2008-04-21 21:02                             ` [PATCH] OLPC: only check for OFW signature on VSA-less Geodes Andres Salomon
2008-04-21 21:17                               ` Jordan Crouse
2008-04-21 21:17                               ` [PATCH] " David Woodhouse
2008-04-29  3:06                               ` Andrew Morton
2008-04-29  5:32                                 ` [PATCH] x86: GEODE: cache results from geode_has_vsa2() and uninline Andres Salomon
2008-04-29 20:35                                   ` Andrew Morton
2008-04-29 20:57                                     ` Andres Salomon
2008-04-19 17:39       ` [PATCH 2/2] OLPC: drop pre-OpenFirmware workarounds Andres Salomon
2008-04-19 18:21     ` 2.6.25-mm1 Arjan van de Ven
2008-04-20 11:29 ` internal compiler error: SIGSEGV [Was: 2.6.25-mm1] Jiri Slaby
2008-04-21  8:31 ` Jiri Slaby
2008-04-21  9:06   ` Al Viro
2008-04-21  9:37     ` fault in __d_lookup " Jiri Slaby
2008-04-21  9:45       ` Al Viro [this message]
2008-04-21  9:59         ` Jiri Slaby
2008-04-21 13:42           ` Rafael J. Wysocki
2008-04-21 17:23           ` Matthew Wilcox

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