[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] BUG at drivers/xen/balloon.c:353
On 10/09/13 17:52, Boris Ostrovsky wrote: > On 09/10/2013 12:30 PM, David Vrabel wrote: >> On 10/09/13 17:12, Ian Jackson wrote: >>> Now that we are on Linux 3.4.y, I am once again trying to commission >>> my pair of weevils. Things are better than they were but it's still >>> totally broken. >>> >>> Below you can see the logs from my adhoc osstest flight 19169. I >>> looked at one of the save/restore failures (test-amd64-i386-xl) and >>> see this: >>> >>> Sep 10 00:03:09.073066 [ 240.142970] kernel BUG at >>> drivers/xen/balloon.c:353! >>> >>> I'd appreciate any help available with debugging this. The logs are >>> here: >>> >>> >>> http://www.chiark.greenend.org.uk/~xensrcts/logs/19169/test-amd64-i386-xl/info.html >>> >>> >>> I looked at the code in balloon.c: >>> >>> BUG_ON(!xen_feature(XENFEAT_auto_translated_physmap) && >>> phys_to_machine_mapping_valid(pfn)); >>> >>> Ian. >>> >>> Sep 10 00:03:08.629133 [ 240.142955] ------------[ cut here >>> ]------------ >>> Sep 10 00:03:09.073066 [ 240.142970] kernel BUG at >>> drivers/xen/balloon.c:353! >>> Sep 10 00:03:09.073102 [ 240.142974] invalid opcode: 0000 [#1] SMP >>> Sep 10 00:03:09.081064 [ 240.142978] Modules linked in: >>> xen_acpi_processor xen_gntalloc ext4 jbd2 mbcache e1000e >>> Sep 10 00:03:09.093059 [ 240.142987] CPU: 6 PID: 847 Comm: >>> kworker/6:1 Not tainted 3.11.0+ #1 >> There's a know bug in this area with 3.11+ (3.12-rc0) and there is >> pending pull request for the fix. > > If you are thinking about preempt count bug then its' likely a different > one. No, I'm thinking of Wei's "xen/balloon: remove BUG_ON in increase_reservation" which actually doesn't appear to be queued up. David _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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