[haiku-bugs] Re: [Haiku] #10774: Debugger crashes while debugging a Qt app
- From: "waddlesplash" <trac@xxxxxxxxxxxx>
- Date: Wed, 23 Apr 2014 03:28:10 -0000
#10774: Debugger crashes while debugging a Qt app
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Reporter: waddlesplash | 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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Comment (by waddlesplash):
Replying to [comment:1 anevilyak]:
> Is the crash consistently in the same location? At a glance, the
backtrace indicates possible heap corruption, where the crashing code is
more typically the victim, and as such not so helpful at tracking down the
cause. It'd be potentially interesting to see the resulting crash report
if Debugger is started with {{{ LD_PRELOAD=libroot_debug.so }}}.
No. It happens after having the debugger attached to the process for any
significant length of time (~10-15s). It doesn't matter if the app was
already running or if it was launched with the debugger.
> Otherwise, I also note that your VM is getting relatively near to using
all of its memory, with >1GB of heap in the Debugger team itself, so it
may simply be running out of memory, which isn't necessarily handled
gracefully everywhere in the system libraries. As such, it'd also be
interesting to know if increasing the amount of memory given to the VM
makes a difference.
Will try later.
> On the other hand, another possibility is address space exhaustion, as
would occur when trying to debug e.g. WebKit on a 32-bit system (it's
difficult to tell for certain from the given information). If that one's
the case, then the only real solution would be to use a 64-bit build.
Nope, not debugging WebKit here -- I'm debugging Qt Designer, which does
not even link to QtWebKit.
--
Ticket URL: <https://dev.haiku-os.org/ticket/10774#comment:2>
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