On 10/07/2010 09:04 AM, Frank Mehnert wrote:
Walt,
On Wednesday 06 October 2010, walt wrote:
My amd64 machine doesn't print anything at all, but syslog on my
x86 is included below. It makes sense that the offending code has
to do with timers because GVMM_SCHED_WITH_PPT is the only thing
changed by r32797.
I have a tickless system here as well and currently running
Linux 2.6.36-rc7. Could you check if the problem persists if
you update to this version? And please make sure to update the
VBox source code to r32985 or later.
Okay, I'm up to date with r32986 and 2.6.36-rc7. Alas, I see the same
behavior -- instant lockup on the amd64x2 with no messages on the console
or in syslog, but the amd32 linux host survives the VBox crash and prints
the same syslog I posted yesterday.
The critical lines of code involved:
#if defined(RT_OS_LINUX) || defined(DOXYGEN_RUNNING)
/** Define this to enable the periodic preemption timer. */
# define GVMM_SCHED_WITH_PPT
#endif
Is DOXYGEN_RUNNING referring to the documentation system of the same
name? I ask only because I used the --disable-docs configure flag on
both machines because I didn't want to install the entire latex system
just to generate the user manual.
However, the test for RT_OS_LINUX is the recent addition that tickles
this bug by setting GVMM_SCHED_WITH_PPT to TRUE. If I delete the test
for RT_OS_LINUX, the crash disappears.
BTW, what does the 'RT' mean?
Thanks!
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