[haiku-bugs] Re: [Haiku] #11204: [Debugger] crashes in UiUtils::FunctionNameForFrame ()
- From: "anevilyak" <trac@xxxxxxxxxxxx>
- Date: Fri, 05 Sep 2014 12:23:23 -0000
#11204: [Debugger] crashes in UiUtils::FunctionNameForFrame ()
-------------------------------------+----------------------------
Reporter: diver | Owner: anevilyak
Type: bug | Status: new
Priority: normal | Milestone: R1
Component: Applications/Debugger | Version: R1/Development
Resolution: | Keywords:
Blocked By: | Blocking:
Has a Patch: 0 | Platform: All
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Changes (by anevilyak):
* cc: bonefish (added)
Comment:
Right now I'm not entirely certain as to what to make of this one. If I'm
reading the disassembly correctly, the crash appears to occur around
http://cgit.haiku-
os.org/haiku/tree/src/apps/debugger/user_interface/util/UiUtils.cpp#n113 .
However, I see nothing obviously wrong with how things are being handled
there. Looking further up the stack, The only potential problem I see is
that http://cgit.haiku-
os.org/haiku/tree/src/apps/debugger/controllers/DebugReportGenerator.cpp#n476
can potentially exit the initial loop without reacquiring the team lock if
it's interrupted while acquiring the team data semaphore, but then
successfully gets the stack trace immediately after said continue.
In that case, it would retrieve the statement corresponding to the IP from
the team without having the team locked, which I suppose could possibly
lead to one or the other of the pointers being passed into
FunctionNameForFrame() being invalid, but I'm uncertain. A second pair of
eyes would be helpful.
--
Ticket URL: <https://dev.haiku-os.org/ticket/11204#comment:1>
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