778693 - Intermittent tp5 crash on www.w3schools.com/html/default.asp.html [@ nsStyleContext::~nsStyleContext]

Status: RESOLVED INVALID

(Core :: CSS Parsing and Computation, defect)

Description

[Ed Morley [:emorley]]

(Different stack to bug 751959, so filing separately).

Rev4 MacOSX Snow Leopard 10.6 mozilla-inbound talos tpn on 2012-07-28 07:05:18 PDT for push d4b106f2136c

slave: talos-r4-snow-041

https://tbpl.mozilla.org/php/getParsedLog.php?id=13938375&tree=Mozilla-Inbound

{
NOISE: MOZ_EVENT_TRACE sample 1343485616221 85
NOISE: MOZ_EVENT_TRACE sample 1343485616294 72
NOISE: Cycle 1(18): loaded http://localhost/page_load_test/tp5n/guardian.co.uk/www.guardian.co.uk/index.html (next: http://localhost/page_load_test/tp5n/w3schools.com/www.w3schools.com/html/default.asp.html)
NOISE: MOZ_EVENT_TRACE sample 1343485616543 249
NOISE: MOZ_EVENT_TRACE sample 1343485616601 57
NOISE: RSS: Main: 229318656
NOISE: 
NOISE: MOZ_EVENT_TRACE sample 1343485616857 50
NOISE: MOZ_EVENT_TRACE sample 1343485616893 35
NOISE: MOZ_EVENT_TRACE sample 1343485616998 104
NOISE: 
NOISE: __FAILbrowser non-zero return code (256)__FAIL
NOISE: Found crashdump: /var/folders/Hs/HsDn6a9SG8idoIya6p9mtE+++TI/-Tmp-/tmp0pWwQG/profile/minidumps/1FFFF2F4-0EC9-4BDE-B838-BAEFBA0C1A03.dmp
Operating system: Mac OS X
                  10.6.8 10K549
CPU: amd64
     family 6 model 23 stepping 10
     2 CPUs

Crash reason:  EXC_BAD_ACCESS / KERN_INVALID_ADDRESS
Crash address: 0x46a18580

Thread 0 (crashed)
 0  XUL!nsStyleContext::~nsStyleContext [nsStyleContext.cpp : 135 + 0xa]
    rbx = 0x1c0a9400   r12 = 0x46a18560   r13 = 0x25f91a90   r14 = 0x1c0a9400
    r15 = 0x00000003   rip = 0x0132a052   rsp = 0x5fbfc010   rbp = 0x5fbfc030

Thread 1
 0  libSystem.B.dylib + 0x19c0a
    rbx = 0x000cde50   r12 = 0x70f0f998   r13 = 0x70f0fd68   r14 = 0xffffffff
    r15 = 0x70f0fda8   rip = 0x87eebc0a   rsp = 0x000cdce8   rbp = 0x000cde90

Thread 2
 0  libSystem.B.dylib + 0x19c0a
    rbx = 0x00000000   r12 = 0x00392000   r13 = 0x00000000   r14 = 0x003aa370
    r15 = 0x00386400   rip = 0x87eebc0a   rsp = 0x05603bb8   rbp = 0x05603c00

Thread 3
 0  libSystem.B.dylib + 0x3ba6a
    rbx = 0x05581000   r12 = 0x003a3a08   r13 = 0x003a5b40   r14 = 0x00000001
    r15 = 0x00000000   rip = 0x87f0da6a   rsp = 0x05580ce8   rbp = 0x05580d60

Thread 4
 0  libSystem.B.dylib + 0x44932
    rbx = 0x00000001   r12 = 0x03e7fc18   r13 = 0x00000000   r14 = 0x00000002
    r15 = 0x06380ad0   rip = 0x87f16932   rsp = 0x063808c8   rbp = 0x06380a80

Thread 5
 0  libSystem.B.dylib + 0x3ba6a
    rbx = 0x06404000   r12 = 0x06087148   r13 = 0x06047480   r14 = 0x00000001
    r15 = 0x00000000   rip = 0x87f0da6a   rsp = 0x06403d98   rbp = 0x06403e10

Thread 6
 0  libSystem.B.dylib + 0x3ba6a
    rbx = 0x071e2000   r12 = 0x0609e7c8   r13 = 0x06048bc0   r14 = 0x00000001
    r15 = 0x00000000   rip = 0x87f0da6a   rsp = 0x071e1dc8   rbp = 0x071e1e40

Thread 7
 0  libSystem.B.dylib + 0x3ba6a
    rbx = 0x07665000   r12 = 0x0609eac8   r13 = 0x06049640   r14 = 0x00000001
    r15 = 0x00000000   rip = 0x87f0da6a   rsp = 0x07664de8   rbp = 0x07664e60
}

Comment 1

[Ryan VanderMeulen [:RyanVM]]

https://tbpl.mozilla.org/php/getParsedLog.php?id=14784011&tree=Mozilla-Inbound

Comment 2

[David Baron :dbaron: (⌚️UTC-4, no longer working on Mozilla)]

This bug was observed only on one or more of the six machines listed in
bug 787281 comment 11, which seem likely to have bad memory, disk, or
other hardware problem, based on the rate of failures on those machines
and the types of failures observed.

Therefore I'm marking this bug invalid, though it should be reopened if
it occurs on other (more reliable) hardware.