Panic booting with FreeBSD 10 r259073 under XenServer 6.2

[Shanker Balan]

On 28-Dec-2013, at 9:54 pm, Karl Pielorz <kpielorz_lst at tdx.co.uk> wrote:

> 
> Hi,
> 
> I just updated a Xen guest here (I'm running FreeBSD under XenServer 6.2 on an Intel E3 based machine).
> 
> I went from 9.2-STABLE to 10 'stable' (i.e. I just checked out base/stable/10 - and built it).
> 
> svn info shows it's r259073.
> 
> The build / install all went OK - but booting the new kernel for the first time (GENERIC) I get the following panic:
> 
> "
> Netvsc initializing... SMP: AP CPU #7 Launched!
> panic: can't schedule timer
> cpuid = 0
> KDB: stack backtrace:
> #0 0xffffffff808e7d30 at kdb_backtrace+0x60
> #1 0xffffffff808af815 at panic+0x155
> #2 0xffffffff807a13fd at xentimer_et_start+0xed
> #3 0xffffffff80d66c2d at loadtimer+0xfd
> #4 0xffffffff80d656bd at handleevents+0x2dd
> #5 0xffffffff80d65e88 at timercb+0x308
> #6 0xffffffff807a144d at xentimer_intr+0x4d
> #7 0xffffffff80883dbb at intr_event_handle+0x9b
> #8 0xffffffff80d8d088 at intr_execute_handlers+0x48
> #9 0xffffffff80d967c9 at xen_intr_handle_upcall+0x159
> #10 0xffffffff80c75f6c at Xxen_intr_upcall+0x8c
> #11 0xffffffff80861158 at mi_startup+0x118
> #12 0xffffffff802d3ddc at btext+0x2c
> "
> 
> I know there's been a flurry of Xen patches submitted to the list recently - but I'm playing catchup with mail at the moment. Is the above a known issue? / Any suggestions?


FreeBSD 10 RC3 r259778 is what I am running under XenServer 6.2 here which
seems to work fine.

root at gw1-1:~ # uname -a
FreeBSD gw1-1 10.0-RC3 FreeBSD 10.0-RC3 #0 r259778: Tue Dec 24 04:35:46 UTC 2013     root at snap.freebsd.org:/usr/obj/usr/src/sys/GENERIC  i386

Regards.
@shankerbalan