2.6.10-rc1-mm2: konqueror segfaults for no reason

2.6.10-rc1-mm2: konqueror segfaults for no reason

[Rafael J. Wysocki]

Hi,

On 2.6.10-rc1-mm2 with SuSE 9.1 /x86_64 konqueror always crashes for no 
specific reason and the following messages appear in dmesg:

local[18494]: segfault at 0000003000000018 rip 0000000000428f2a rsp 
0000007fbfffe870 error 4
local[18493]: segfault at 0000003000000018 rip 0000000000428f2a rsp 
0000007fbfffe870 error 4

This does not happen on 2.6.10-rc1.

The .config is available at:
http://www.sisk.pl/kernel/041029/2.6.10-rc1-mm2.config

Greets,
RJW

-- 
- Would you tell me, please, which way I ought to go from here?
- That depends a good deal on where you want to get to.
		-- Lewis Carroll "Alice's Adventures in Wonderland"

Re: 2.6.10-rc1-mm2: konqueror segfaults for no reason

[Andi Kleen]

On Fri, Oct 29, 2004 at 06:23:34PM +0200, Rafael J. Wysocki wrote:
> Hi,
> 
> On 2.6.10-rc1-mm2 with SuSE 9.1 /x86_64 konqueror always crashes for no 
> specific reason and the following messages appear in dmesg:
> 
> local[18494]: segfault at 0000003000000018 rip 0000000000428f2a rsp 
> 0000007fbfffe870 error 4
> local[18493]: segfault at 0000003000000018 rip 0000000000428f2a rsp 
> 0000007fbfffe870 error 4
> 
> This does not happen on 2.6.10-rc1.
> 
> The .config is available at:
> http://www.sisk.pl/kernel/041029/2.6.10-rc1-mm2.config

Can you back out patches and try to figure out which one caused it? 
Doing a strace -f -o LOG of konqueror before the fault may also be interesting
to see what it did before it crashes.

-Andi

Re: 2.6.10-rc1-mm2: konqueror segfaults for no reason

[Andi Kleen]

On Fri, Oct 29, 2004 at 06:23:34PM +0200, Rafael J. Wysocki wrote:
> Hi,
> 
> On 2.6.10-rc1-mm2 with SuSE 9.1 /x86_64 konqueror always crashes for no 
> specific reason and the following messages appear in dmesg:
> 
> local[18494]: segfault at 0000003000000018 rip 0000000000428f2a rsp 
> 0000007fbfffe870 error 4
> local[18493]: segfault at 0000003000000018 rip 0000000000428f2a rsp 
> 0000007fbfffe870 error 4
> 
> This does not happen on 2.6.10-rc1.

I tested this now too and konqueror also works fine for me.

-Andi

Re: 2.6.10-rc1-mm2: konqueror segfaults for no reason

[Rafael J. Wysocki]

On Saturday 30 of October 2004 17:04, Andi Kleen wrote:
> On Fri, Oct 29, 2004 at 06:23:34PM +0200, Rafael J. Wysocki wrote:
> > Hi,
> > 
> > On 2.6.10-rc1-mm2 with SuSE 9.1 /x86_64 konqueror always crashes for no 
> > specific reason and the following messages appear in dmesg:
> > 
> > local[18494]: segfault at 0000003000000018 rip 0000000000428f2a rsp 
> > 0000007fbfffe870 error 4
> > local[18493]: segfault at 0000003000000018 rip 0000000000428f2a rsp 
> > 0000007fbfffe870 error 4
> > 
> > This does not happen on 2.6.10-rc1.
> 
> I tested this now too and konqueror also works fine for me.

Have you tested this on an SMP machine?  Mine is a UP.  I'll chek a dual 
Opteron box in a couple of minutes.

Greets,
RJW

-- 
- Would you tell me, please, which way I ought to go from here?
- That depends a good deal on where you want to get to.
		-- Lewis Carroll "Alice's Adventures in Wonderland"

Re: 2.6.10-rc1-mm2: konqueror segfaults for no reason

[Andi Kleen]

> Have you tested this on an SMP machine?  Mine is a UP.  I'll chek a dual 

Yes, on a Dual Opteron with web browsing.  Similar with firefox.

-Andi

Re: 2.6.10-rc1-mm2: konqueror segfaults for no reason

[Andi Kleen]

On Sat, Oct 30, 2004 at 06:37:25PM +0200, Rafael J. Wysocki wrote:
> On Saturday 30 of October 2004 17:52, Andi Kleen wrote:
> > > Have you tested this on an SMP machine?  Mine is a UP.  I'll chek a dual 
> > 
> > Yes, on a Dual Opteron with web browsing.  Similar with firefox.
> 
> Can you, please, send me your .config?

arch/x86_64/defconfig as always.

-Andi

Re: 2.6.10-rc1-mm2: konqueror segfaults for no reason

[Rafael J. Wysocki]

On Sunday 31 of October 2004 02:53, Andi Kleen wrote:
> On Sat, Oct 30, 2004 at 06:37:25PM +0200, Rafael J. Wysocki wrote:
> > On Saturday 30 of October 2004 17:52, Andi Kleen wrote:
> > > > Have you tested this on an SMP machine?  Mine is a UP.  I'll chek a 
dual 
> > > 
> > > Yes, on a Dual Opteron with web browsing.  Similar with firefox.
> > 
> > Can you, please, send me your .config?
> 
> arch/x86_64/defconfig as always.

Same thing.  Hmm.  What about gcc?  I use gcc 3.3.3 (out of SuSE 9.1).

Greets,
RJW

-- 
- Would you tell me, please, which way I ought to go from here?
- That depends a good deal on where you want to get to.
		-- Lewis Carroll "Alice's Adventures in Wonderland"

2.6.10-rc1-mm2: konqueror crash because of cputime patches

[Rafael J. Wysocki]

On Saturday 30 of October 2004 18:37, Rafael J. Wysocki wrote:
> On Saturday 30 of October 2004 17:52, Andi Kleen wrote:
> > > Have you tested this on an SMP machine?  Mine is a UP.  I'll chek a dual 
> > 
> > Yes, on a Dual Opteron with web browsing.  Similar with firefox.
> 
> Can you, please, send me your .config?
> 
> There's something nasty going on here.
> 
> For konqueror vs 2.6.10-rc1-mm2, I have the problem reproduced on the dual 
> Opteron machine, although the konqueror itself is different (3.3.1) than on 
> the UP box (3.2.3): it (ie the konqueror) starts normally, but crashes when
> try to open an arbitrary web page (eg linuxtoday.com).

Well, an arbitrary web page need not be sufficient.  Apparently, the web page 
needs to contain JavaScript to make konqueror crash.  Also, when JavaScript 
is disabled in konqueror, it works normally, so I assume that it crashes on 
an attempt to execute JavaScript.

[-- snip]
> I think I'll first try to play with the .config settings.  Then, I'll search 
> through the patches.

Done.  Evidently, if the cputime patches:

cputime-introduce-cputime-fix.patch
cputime-introduce-cputime.patch
cputime-missing-pieces.patch

are reversed, konqueror works fine again on 2.6.10-rc1-mm2 (verified on two 
different systems).

I have created a bugzilla entry for it at:
http://bugzilla.kernel.org/show_bug.cgi?id=3675

If you need any more information, please let me know and I'll post it there.

Greets,
RJW

-- 
- Would you tell me, please, which way I ought to go from here?
- That depends a good deal on where you want to get to.
		-- Lewis Carroll "Alice's Adventures in Wonderland"

Re: 2.6.10-rc1-mm2: konqueror crash because of cputime patches

[Matt Heler]

On Sunday 31 October 2004 8:51 am, Rafael J. Wysocki wrote:
> Done.  Evidently, if the cputime patches:
>
> cputime-introduce-cputime-fix.patch
> cputime-introduce-cputime.patch
> cputime-missing-pieces.patch
>


Reversing theese fixed my konqueror issues to. In 2.6.10-rc1-mm2 , konqueror 
would crash instantly when I tried browsing a webpage ( any page ).


mattt

Re: 2.6.10-rc1-mm2: konqueror crash because of cputime patches

[Andi Kleen]

[intentional fullquote]

On Sun, Oct 31, 2004 at 04:51:23PM +0100, Rafael J. Wysocki wrote:
> > > Yes, on a Dual Opteron with web browsing.  Similar with firefox.
> > 
> > Can you, please, send me your .config?
> > 
> > There's something nasty going on here.
> > 
> > For konqueror vs 2.6.10-rc1-mm2, I have the problem reproduced on the dual 
> > Opteron machine, although the konqueror itself is different (3.3.1) than on 
> > the UP box (3.2.3): it (ie the konqueror) starts normally, but crashes when
> > try to open an arbitrary web page (eg linuxtoday.com).
> 
> Well, an arbitrary web page need not be sufficient.  Apparently, the web page 
> needs to contain JavaScript to make konqueror crash.  Also, when JavaScript 
> is disabled in konqueror, it works normally, so I assume that it crashes on 
> an attempt to execute JavaScript.
> 
> [-- snip]
> > I think I'll first try to play with the .config settings.  Then, I'll search 
> > through the patches.
> 
> Done.  Evidently, if the cputime patches:
> 
> cputime-introduce-cputime-fix.patch
> cputime-introduce-cputime.patch
> cputime-missing-pieces.patch
> 
> are reversed, konqueror works fine again on 2.6.10-rc1-mm2 (verified on two 
> different systems).
> 
> I have created a bugzilla entry for it at:
> http://bugzilla.kernel.org/show_bug.cgi?id=3675
> 
> If you need any more information, please let me know and I'll post it there.

Ok thanks. I will leave it to Martin to figure out. 

-Andi

Re: 2.6.10-rc1-mm2: konqueror segfaults for no reason (2nd update)

[Rafael J. Wysocki]

On Saturday 30 of October 2004 17:04, Andi Kleen wrote:
> On Fri, Oct 29, 2004 at 06:23:34PM +0200, Rafael J. Wysocki wrote:
> > Hi,
> > 
> > On 2.6.10-rc1-mm2 with SuSE 9.1 /x86_64 konqueror always crashes for no 
> > specific reason and the following messages appear in dmesg:
> > 
> > local[18494]: segfault at 0000003000000018 rip 0000000000428f2a rsp 
> > 0000007fbfffe870 error 4
> > local[18493]: segfault at 0000003000000018 rip 0000000000428f2a rsp 
> > 0000007fbfffe870 error 4
> > 
> > This does not happen on 2.6.10-rc1.
> 
> I tested this now too and konqueror also works fine for me.

Have you tried to open pages containing JavaScript?  It turns out that my 
konqueror(s) work(s) fine on 2.6.10-rc1-mm2 when I disable JavaScript in it 
(them).

Greets,
RJW

-- 
- Would you tell me, please, which way I ought to go from here?
- That depends a good deal on where you want to get to.
		-- Lewis Carroll "Alice's Adventures in Wonderland"