784432 - Offline Cache Crash

Status: RESOLVED WONTFIX

(Core :: Networking: HTTP, defect)

Description

[Pete Collins (MDG)]

Attachment: nsHttpChannel.cpp patch to test for null pointer

Steps to Reproduce on OSX

  1. manually remove the folder ~/Library/Caches/Firefox
  2. launch Firefox from the commandline pointing to this test page:
     $ ./firefox-bin https://air.tds.airast.org/student/offlinecache.html
  3. While the page is loading issue the key command to quit 
  4. Firefox will crash while it is trying to write to the offline cache

You will have to experiment with the timing as this wont always crash.

Comment 1

[Pete Collins (MDG)]

Please note that the patch is from FIREFOX_10_0_2_RELEASE tag.

But issue exists on the trunk.

Comment 2

[Pete Collins (MDG)]

1894390976[100310140]: nsHttpChannel::OnStartRequest [this=11f990000 request=1184bdd80 status=80004005]
384307200[1003106e0]: STS dispatch [1003652c0]
1894390976[100310140]: nsHttpChannel::ProcessFallback [this=11f990000]
384307200[1003106e0]: THRD(10031b7c0) Dispatch [1003652c0 0]
1894390976[100310140]:   choosing not to fallback [0,,0]
384307200[1003106e0]: EVENTQ(10031b840): notify
1894390976[100310140]:   calling mListener->OnStartRequest
1894390976[100310140]: writing to the offline cache
384307200[1003106e0]: STS poll iter [0]
1894390976[100310140]: nsHttpChannel::AddCacheEntryHeaders [this=1f990000] begin
384307200[1003106e0]:   active [0] { handler=3efd70 condition=80004005 pollflags=5 }
384307200[1003106e0]: nsSocketTransportService::DetachSocket [handler=3efd70]
1894390976[100310140]: ###!!! ASSERTION: You can't dereference a NULL nsAutoPtr with operator->().: 'mRawPtr != 0', file ../../../dist/include/nsAutoPtr.h, line 183
384307200[1003106e0]: nsSocketTransport::OnSocketDetached [this=3efd70 cond=80004005]
384307200[1003106e0]: nsSocketTransport::RecoverFromError [this=3efd70 state=4 cond=80004005]
384307200[1003106e0]: nsSocketInputStream::OnSocketReady [this=3efeb0 cond=80004005]
384307200[1003106e0]: nsSocketOutputStream::OnSocketReady [this=3efee0 cond=80004005]
384307200[1003106e0]: nsSocketTransport: calling PR_Close [this=3efd70]
384307200[1003106e0]: [120742790] Shutting down socket

Comment 3

[Scoobidiver (away)]

Can you provide a crash ID from about:crashes?

Comment 4

[Pete Collins (MDG)]

Crash Report:

https://crash-stats.mozilla.com/report/index/bp-08d42f0a-6b09-4637-945a-47b8c2120821