From: Ingo Molnar <mingo@elte.hu>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Greg KH <gregkh@suse.de>, Alexander Viro <viro@ftp.linux.org.uk>,
Peter Zijlstra <a.p.zijlstra@chello.nl>
Subject: Re: [bug] crash when reading /proc/mounts (was: Re: Linux 2.6.23-rc9 and a heads-up for the 2.6.24 series..)
Date: Wed, 3 Oct 2007 11:12:57 +0200 [thread overview]
Message-ID: <20071003091257.GA15815@elte.hu> (raw)
In-Reply-To: <20071003085022.GA6672@elte.hu>
* Ingo Molnar <mingo@elte.hu> wrote:
> nodev /debug debugfs rw 0 0
> ) = 290
> read(3, "", 4096) = 0
> close(3) = 0
>
> there's nothing particularly interesting in it. (perhaps debugfs)
disabling debugfs makes the crash go away so it's debugfs related. The
.config delta is below.
Ingo
--- .config.broken.000 2007-10-03 10:28:14.000000000 +0200
+++ .config.good.000 2007-10-03 11:11:18.000000000 +0200
@@ -85,7 +85,7 @@ CONFIG_MODULE_SRCVERSION_ALL=y
# CONFIG_KMOD is not set
CONFIG_BLOCK=y
# CONFIG_LBD is not set
-CONFIG_BLK_DEV_IO_TRACE=y
+# CONFIG_BLK_DEV_IO_TRACE is not set
CONFIG_LSF=y
CONFIG_BLK_DEV_BSG=y
@@ -631,7 +631,6 @@ CONFIG_CFG80211=y
CONFIG_WIRELESS_EXT=y
CONFIG_MAC80211=y
CONFIG_MAC80211_LEDS=y
-CONFIG_MAC80211_DEBUGFS=y
# CONFIG_MAC80211_DEBUG is not set
CONFIG_IEEE80211=m
CONFIG_IEEE80211_DEBUG=y
@@ -1689,7 +1688,7 @@ CONFIG_TRACE_IRQFLAGS_SUPPORT=y
CONFIG_ENABLE_MUST_CHECK=y
# CONFIG_MAGIC_SYSRQ is not set
CONFIG_UNUSED_SYMBOLS=y
-CONFIG_DEBUG_FS=y
+# CONFIG_DEBUG_FS is not set
# CONFIG_HEADERS_CHECK is not set
CONFIG_DEBUG_KERNEL=y
CONFIG_DEBUG_SHIRQ=y
@@ -1724,8 +1724,6 @@ CONFIG_FAULT_INJECTION=y
# CONFIG_FAILSLAB is not set
CONFIG_FAIL_PAGE_ALLOC=y
CONFIG_FAIL_MAKE_REQUEST=y
-CONFIG_FAULT_INJECTION_DEBUG_FS=y
-CONFIG_FAULT_INJECTION_STACKTRACE_FILTER=y
CONFIG_EARLY_PRINTK=y
CONFIG_DEBUG_STACKOVERFLOW=y
# CONFIG_DEBUG_STACK_USAGE is not set
next prev parent reply other threads:[~2007-10-03 9:13 UTC|newest]
Thread overview: 85+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <alpine.LFD.0.999.0710012029400.3579@woody.linux-foundation.org >
2007-10-02 3:41 ` Linux 2.6.23-rc9 and a heads-up for the 2.6.24 series Linus Torvalds
2007-10-02 9:17 ` Thomas Gleixner
2007-10-02 9:21 ` Andi Kleen
2007-10-02 10:37 ` Jeff Garzik
2007-10-02 10:48 ` Andi Kleen
2007-10-02 11:05 ` Thomas Gleixner
2007-10-02 14:07 ` Ingo Molnar
2007-10-02 14:23 ` Andi Kleen
2007-10-02 14:31 ` Ingo Molnar
2007-10-02 14:54 ` Andi Kleen
2007-10-02 14:58 ` Sam Ravnborg
2007-10-02 15:24 ` Andi Kleen
2007-10-02 15:27 ` Ingo Molnar
2007-10-02 15:30 ` Thomas Gleixner
2007-10-02 15:40 ` Sam Ravnborg
2007-10-02 12:04 ` Jiri Kosina
2007-10-02 20:12 ` Rafael J. Wysocki
2007-10-02 20:11 ` Andrew Morton
2007-10-02 20:31 ` Rafael J. Wysocki
2007-10-02 20:32 ` Roland Dreier
2007-10-03 3:53 ` Eric St-Laurent
2007-10-02 12:07 ` Mel Gorman
2007-10-02 12:15 ` Ingo Molnar
2007-10-02 17:21 ` Mel Gorman
2007-10-02 22:09 ` Bill Davidsen
2007-10-03 0:37 ` Mel Gorman
2007-10-03 8:21 ` Ingo Molnar
2007-10-03 12:51 ` Mel Gorman
2007-10-22 15:56 ` Ingo Molnar
2007-10-03 8:19 ` Ingo Molnar
2007-10-02 14:44 ` John Stoffel
2007-10-02 15:03 ` Ingo Molnar
2007-10-02 15:45 ` John Stoffel
2007-10-02 22:13 ` Bill Davidsen
2007-10-02 22:44 ` Willy Tarreau
2007-10-02 22:51 ` Alistair John Strachan
2007-10-02 23:00 ` Glauber de Oliveira Costa
2007-10-05 5:41 ` Ingo Molnar
2007-10-05 5:38 ` Ingo Molnar
2007-10-05 6:11 ` Sam Ravnborg
2007-10-05 8:32 ` Thomas Gleixner
2007-10-07 23:44 ` Alistair John Strachan
2007-10-02 23:07 ` Diego Calleja
2007-10-02 23:32 ` Linus Torvalds
2007-10-03 15:28 ` Diego Calleja
2007-10-03 8:46 ` [bug] crash when reading /proc/mounts (was: Re: Linux 2.6.23-rc9 and a heads-up for the 2.6.24 series..) Ingo Molnar
2007-10-03 8:50 ` Ingo Molnar
2007-10-03 9:12 ` Ingo Molnar [this message]
2007-10-03 9:23 ` Ingo Molnar
2007-10-03 13:34 ` Al Viro
2007-10-03 14:08 ` Ingo Molnar
2007-10-03 14:26 ` Al Viro
2007-10-03 15:12 ` Arjan van de Ven
2007-10-03 15:11 ` Linus Torvalds
2007-10-03 15:40 ` Ingo Molnar
2007-10-03 16:07 ` Linus Torvalds
2007-10-03 15:47 ` Linus Torvalds
2007-10-03 15:49 ` Ingo Molnar
2007-10-03 16:07 ` Ingo Molnar
2007-10-03 15:51 ` Alan Cox
2007-10-03 16:09 ` Linus Torvalds
2007-10-03 16:25 ` Jan Engelhardt
2007-10-03 17:07 ` Linus Torvalds
2007-10-04 14:12 ` Adrian Bunk
2007-10-04 15:08 ` Alexey Dobriyan
2007-10-03 14:21 ` Linux 2.6.23-rc9 and a heads-up for the 2.6.24 series Timo Jantunen
2007-10-03 19:07 ` Jeff Garzik
2007-10-03 19:25 ` Linus Torvalds
2007-10-04 11:55 ` [patch] net, 9p: build fix with !CONFIG_SYSCTL Ingo Molnar
2007-10-04 17:05 ` [BUG] Linux 2.6.23-rc9 and MAX_ARG_PAGES Mathieu Chouquet-Stringer
2007-10-04 17:17 ` Peter Zijlstra
2007-10-04 20:47 ` Mathieu Chouquet-Stringer
2007-10-04 21:58 ` Mathieu Chouquet-Stringer
2007-10-04 17:27 ` Linus Torvalds
2007-10-04 20:44 ` Mathieu Chouquet-Stringer
2007-10-04 21:21 ` Linus Torvalds
2007-10-04 22:27 ` Paul Mackerras
2007-10-05 0:12 ` Linus Torvalds
2007-10-05 3:22 ` Mathieu Chouquet-Stringer
2007-10-05 7:43 ` Peter Zijlstra
2007-10-04 21:50 ` Chuck Ebbert
2007-10-04 21:54 ` Mathieu Chouquet-Stringer
2007-10-06 8:29 ` Hans-Peter Jansen
2007-10-06 11:29 ` Hans-Peter Jansen
2007-10-06 17:36 ` Bill Davidsen
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