Bug#579659: iceweasel: freezes on a

[Christophe TROESTLER]

On Fri, 30 Apr 2010 08:41:30 +0200, Mike Hommey wrote:
> 
> On Thu, Apr 29, 2010 at 07:45:34PM +0200, Christophe TROESTLER wrote:
> > On Thu, 29 Apr 2010 19:16:37 +0200, Mike Hommey wrote:
> > > 
> > > On Thu, Apr 29, 2010 at 06:07:05PM +0200, Christophe Troestler wrote:
> > > > When opening the following link, even with "iceweasel -safe-mode", the
> > > > browser freezes:
> > > > http://www.rtbf.be/info/belgique/politique/crise-la-n-va-depose-une-resolution-pour-contourner-la-sonnette-dalarme
> > > 
> > > Flash could be a candidate. Have you tried to disable plugins ?
> > 
> > I thought "iceweasel -safe-mode" did that but it seems it does not.
> > Uninstalling flash or using mozilla-plugin-gnash it works fine indeed.
> 
> Note that freezing is not the usual deal with the flash plugin. Crashing
> is. Freezing is most likely due to your sound setup. What does
> /etc/iceweasel/iceweaselrc have to say about ICEWEASEL_DSP ? If it is
> none, can you try auto ?

With "auto", iceweasel segfaults on startup.  Tail of strace :

...
futex(0x7fff97ca02bc, FUTEX_WAKE_PRIVATE, 1) = 0
futex(0x7fff97ca02bc, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 1, NULL, 7f3cac9fc710) = -1 EAGAIN (Resource temporarily unavailable)
rt_sigaction(SIGRTMIN, {0x7f3cabcd3750, [], SA_RESTORER|SA_SIGINFO, 0x7f3cabcdc990}, NULL, 8) = 0
rt_sigaction(SIGRT_1, {0x7f3cabcd37e0, [], SA_RESTORER|SA_RESTART|SA_SIGINFO, 0x7f3cabcdc990}, NULL, 8) = 0
rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
getrlimit(RLIMIT_STACK, {rlim_cur=8192*1024, rlim_max=RLIM_INFINITY}) = 0
lstat("/usr", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
lstat("/usr/lib", {st_mode=S_IFDIR|0755, st_size=122880, ...}) = 0
lstat("/usr/lib/iceweasel", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
futex(0x7f3cac3fd0ec, FUTEX_WAKE_PRIVATE, 2147483647) = 0
--- SIGSEGV (Segmentation fault) @ 0 (0) ---
+++ killed by SIGSEGV +++
Segmentation fault

> > It would be nice if iceweasel could "sandbox" flash (as unfortunately
> > many sites are using it) but I guess it is not for the near future...
> 
> Actually, this is for the near future. Version 3.6.4 for which a beta
> should reach experimental soon will have "out of process plugins".
> Though I don't know how well freezing plugins will be handled.

Cool !

Cheers,
C.