[Gc] GC_remap fails with ENOMEM on Linux with large (64K) pages.

Steven Munroe munroesj at linux.vnet.ibm.com
Wed May 27 15:20:29 PDT 2009


On Wed, 2009-05-27 at 11:33 +0400, Ivan Maidanski wrote:
> Hi!
> 
> munroesj at us.ibm.com wrote:
> > We are trying to use mono 64-bit on SLES11 PowerPC. We are seeing lots
> > of failures of the form:
> > 
> > Mprotect failed at 0x40002790000 (length 131072) with errno 12
> > 
> 
> It seems that You're using gc v7.1 (or prior). This portion of code is changed a lot (eg., mmap() is used instead of mprotect() here). Could You, please, try to reproduce the problem with the recent CVS version.
> 
Looks like mono is using Version 6.6 (even in their current svc). So a
simple replacement of libgc is not possible with mono-2.4. I get the
following error:

boehm-gc.c:238: error: expected ‘)’ before ‘event’
boehm-gc.c: In function ‘mono_gc_enable_events’:
boehm-gc.c:266: error: ‘GC_notify_event’ undeclared (first use in this
function)boehm-gc.c:266: error: (Each undeclared identifier is reported
only once
boehm-gc.c:266: error: for each function it appears in.)
boehm-gc.c:266: error: ‘on_gc_notification’ undeclared (first use in
this function)
boehm-gc.c:267: error: ‘GC_on_heap_resize’ undeclared (first use in this
function)

It seems that GCEventType is no longer defined and there is no obvious
equivalent to try.




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