Bug #2623
closed
Instant panic trying to view html5 videos with Firefox
0%
Description
The kernel panics almost immediately after a video has started playing.
Steps to reproduce:
- Use DragonFly 3.7/x86_64 (i386 untested)
- Launch firefox
- Try to see a video on youtube
Panic message and stack trace:
<6>pid 1606 (firefox), uid 1000: exited on signal 6
panic: assertion "ref >= &td->td_toks_base && ref->tr_tok == tok" failed in lwkt_reltoken at /usr/src/sys/kern/lwkt_token.c:812
(kgdb) #0 _get_mycpu () at ./machine/thread.h:69
#1 md_dumpsys (di=di@entry=0xffffffff80f2df60 <dumper>)
at /usr/src/sys/platform/pc64/x86_64/dump_machdep.c:265
#2 0xffffffff80564952 in dumpsys () at /usr/src/sys/kern/kern_shutdown.c:912
#3 0xffffffff80564e1f in boot (howto=howto@entry=260)
at /usr/src/sys/kern/kern_shutdown.c:369
#4 0xffffffff80565115 in panic (
fmt=fmt@entry=0xffffffff8097ba38 "assertion \"%s\" failed in %s at %s:%u")
at /usr/src/sys/kern/kern_shutdown.c:818
#5 0xffffffff80579478 in lwkt_reltoken (tok=tok@entry=0xffffffe209df2040)
at /usr/src/sys/kern/lwkt_token.c:812
#6 0xffffffff80567f58 in sigexit (lp=lp@entry=0xffffffe20a21f200,
sig=sig@entry=6) at /usr/src/sys/kern/kern_sig.c:2185
#7 0xffffffff80568126 in postsig (sig=sig@entry=6)
at /usr/src/sys/kern/kern_sig.c:2083
#8 0xffffffff80930f1d in userret (lp=lp@entry=0xffffffe20a21f200,
frame=frame@entry=0xffffffe20f42f9f8, sticks=sticks@entry=7812)
at /usr/src/sys/platform/pc64/x86_64/trap.c:275
#9 0xffffffff809325e3 in syscall2 (frame=0xffffffe20f42f9f8)
at /usr/src/sys/platform/pc64/x86_64/trap.c:1310
#10 0xffffffff8091bfeb in Xfast_syscall ()
at /usr/src/sys/platform/pc64/x86_64/exception.S:323
#11 0x000000000000002b in ?? ()
Backtrace stopped: previous frame inner to this frame (corrupt stack?)
Files
Updated by ftigeot almost 11 years ago
Core dump files are now present on leaf:~ftigeot/crash/crash.issue2623
Updated by marino almost 11 years ago
i am curious, which firefox are you using? version 26?
and was firefox installed from binary package?
Updated by ftigeot almost 11 years ago
It was with firefox 25 (both package and locally compiled dports version).
Now that I've upgraded to firefox 26, the issue isn't visible anymore.
Updated by ftigeot almost 11 years ago
I can still reproduce this issue with a firefox or seamonkey binary built with the ALSA option
Updated by ftigeot almost 11 years ago
The kernel panic is obviously caused by some wrong usage of the p->p_token token.
Removing the lwkt_gettoken() and lwkt_reltoken() calls from sigexit() is enough to prevent it.
The user process dies quietly, producing a coredump and printing some debug information:
Assertion failed: (r == 0), function alsa_stream_destroy, file /usr/obj/dports/www/seamonkey/work/comm-release/mozilla/media/libcubeb/src/cubeb_alsa.c, line 885.
Updated by ftigeot almost 11 years ago
- File patch-kern_sig.c patch-kern_sig.c added
Kernel patch I used
Updated by tuxillo over 10 years ago
- Category set to Kernel
- Target version set to 3.9.x
Hi François,
What happened to this one? Did you check the patch with Matt?
Cheers,
Antonio Huete
Updated by ftigeot over 10 years ago
I had forgotten this patch; I'll try to ping Matt soon.
Updated by tuxillo almost 10 years ago
- Status changed from New to Closed
Hi,
I've been using firefox and HTML5 videos recently but no panics. This is for sure fixed.
Cheers