[haiku-bugs] Re: [Haiku] #5956: PPC boot fails on double lock of mutex
- From: "andreasf" <trac@xxxxxxxxxxxx>
- Date: Sat, 15 May 2010 14:42:17 -0000
#5956: PPC boot fails on double lock of mutex
---------------------------+------------------------------------------------
Reporter: stevenh | Owner: axeld
Type: bug | Status: new
Priority: normal | Milestone: R1
Component: System/Kernel | Version: R1/Development
Keywords: | Blockedby:
Platform: PowerPC | Blocking: 1048
---------------------------+------------------------------------------------
Comment(by andreasf):
Here's some more info on the original problem.
Turning on {{{TRACE_HEAP}}} in src/system/kernel/heap.cpp shows that it
goes through the {{{new}}} operator (headers/private/kernel/heap.h) to
{{{memalign_etc}}} and through {{{heap_memalign}}} to {{{heap_raw_alloc}}}
with a {{{NULL}}} {{{heap_allocator}}}:
{{{
memalign(alignment = 0, size = 112)
heap 0x00000000: allocate 112 bytes from raw pages with alignment 0
PANIC: _mutex_lock(): double lock of 0x0000001c by thread 0
}}}
This would seem to indicate that {{{sVIPHeap}}} (cf. {{{memalign_etc}}})
is {{{NULL}}}.
--
Ticket URL: <http://dev.haiku-os.org/ticket/5956#comment:6>
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