Date: Mon, 17 Feb 2014 14:44:12 +0000 From: Karl Pielorz <kpielorz_lst@tdx.co.uk> To: freebsd-xen@freebsd.org Subject: FreeBSD 10-R 8 vCPU panics at boot under XenServer (on 8 'core' CPU) Message-ID: <6A3B878077F7D071847052C0@Mail-PC.tdx.co.uk>
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Hi, I've got a FreeBSD 10-R amd64 DomU guest I'm using under XenServer 6.2 (SP1) - this was working fine (i.e. had been restarted many times - while I look at things like HAST). I noticed the other day it was only set to use 4 vCPU's - so I increased this to 8 (the machine has an 4 Core, 8 Thread Xeon 1230v3 in it - which Xen see's as 8 CPU cores). However, it won't boot reliably now: " ... SMP: AP CPU #5 Launched panic: can't schedule timer cpuid = 0 KDB: stack backtrace: #0 0xffffffff808e7dd0 at kdb_backtrace+0x60 #1 0xffffffff808af8b5 at panic+0x155 #2 0xffffffff807a14dd at xentimer_et_start+0xed #3 0xffffffff80d66d6d at loadtimer+0xfd #4 0xffffffff80d657fd at handleevents+0x308 #5 0xffffffff80d65fc8 at timercb+0x308 #6 0xffffffff807a152d at xentimer_intr+0x4d #7 0xffffffff80883e5b at intr_event_handle+0x9b ... " Less than 8 vCPU's seems to boot OK (e.g. 7) and 8 vCPU's has booted a couple of times (out of 30+ reboots). The system is running GENERIC with: options NO_ADAPTIVE_MUTEXES options NO_ADAPTIVE_RWLOCKS options NO_ADAPTIVE_SX In addition XenServer is set to pass through the bare machine's LSI and two Intel NIC's (which it does - and are working, once FreeBSD is booted). Any idea's? -Karl
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