1755126 - Crash in [@ DNSServiceWrapper::SwitchToBackupDNSService]

Status: RESOLVED FIXED

(Core :: Networking, defect)

Description

[Calixte Denizet (:calixte)]

Maybe Fission related. (DOMFissionEnabled=1)

Crash report: https://crash-stats.mozilla.org/report/index/b68510c7-0b36-45ab-bd8c-46b890220212

Reason: EXCEPTION_ACCESS_VIOLATION_READ

Top 10 frames of crashing thread:

0 xul.dll static DNSServiceWrapper::SwitchToBackupDNSService netwerk/dns/nsDNSService2.cpp:635
1 xul.dll mozilla::net::nsIOService::OnProcessUnexpectedShutdown netwerk/base/nsIOService.cpp:709
2 xul.dll mozilla::net::SocketProcessHost::OnChannelClosed netwerk/ipc/SocketProcessHost.cpp:236
3 xul.dll mozilla::net::SocketProcessParent::ActorDestroy netwerk/ipc/SocketProcessParent.cpp:107
4 xul.dll mozilla::ipc::IProtocol::DestroySubtree ipc/glue/ProtocolUtils.cpp:569
5 xul.dll mozilla::net::PSocketProcessChild::OnChannelError ipc/ipdl/PSocketProcessParent.cpp:3840
6 xul.dll mozilla::ipc::MessageChannel::OnNotifyMaybeChannelError ipc/glue/MessageChannel.cpp:1936
7 xul.dll mozilla::detail::RunnableMethodImpl<mozilla::UntrustedModulesProcessor*, void  xpcom/threads/nsThreadUtils.h:1200
8 xul.dll mozilla::TaskController::DoExecuteNextTaskOnlyMainThreadInternal xpcom/threads/TaskController.cpp:770
9 xul.dll mozilla::TaskController::ProcessPendingMTTask xpcom/threads/TaskController.cpp:390

There are 17 crashes (from 7 installations) in nightly 99 with buildid 20220211190545. In analyzing the backtrace, the regression may have been introduced by patch [1] to fix bug 1600309.

[1] https://hg.mozilla.org/mozilla-central/rev?node=c7262d966a28

Comment 1

[Kershaw Chang [:kershaw]]

This should be fixed by backing out bug 1600309.