Re: NetBSD -current with Xen 3.0.3: kernel panic while starting domU

[Manuel Bouyer <bouyer%antioche.eu.org@localhost>]

On Wed, Nov 08, 2006 at 10:31:46PM +0100, Rainer Brinkmoeller wrote:
> Hi,
> 
> at a machine which i updated from NetBSD 3 with Xen 2.0.7 to NetBSD 
> -current with Xen 3.0.3 i've got a kernel panic while starting the third 
> domU:
> 
> panic: kernel diagnostic assertion "pcg->pcg_objects[idx].pcgo_va == NULL"
> failed: file "/usr/src/sys/kern/subr_pool.c", line 2008
> Stopped in pid 104.3 (python2.4) at    netbsd: cpu_Debugger+0x4: popl
> %
> ebp
> db>
> 
> Then enter "bt" at this prompt. Next you see the list of function i've got.
> 
> On Wed, Nov 08, 2006 at 08:59:53PM +0100, Hubert Feyrer wrote:
> 
> >>>>cpu_Debugger +0x4
> >>>>panic +0x155
> >>>>__assert + 0x2e
> >>>>pool_cache_get_paddr
> >>>>bt_free +0x1f
> >>>>vmem_xfree +0x190
> >>>>xen_shm_unmap +0xa9
> >>>>xbdback_iodome +0x12f
> >>>>biodome +0x111
> >>>>wddone +0x82
> >>>>wdc_ata_bio_done +0x88
> >>>>wdc_ata_bio_intr +0x1ba
> >>>>wdcintr +0xf3
> >>>>pciide_pci_intr +0x49
> >>>>evtchn_do_event +0xbd
> >>>>do_hypervisor_callback +0xfa
> >>>>hypervisor_callback +0x64
> >>>>bt_alloc +0x24
> >>>>vmem_xalloc +0xf1
> >>>>vmem_alloc +0xd2
> >>>>kmem_alloc +0x45
> >>>>kmem_zalloc +0x1e
> >>>>sa_upcall_userret +0x23e
> >>>>upcallret +0x5f
> >>>>sa_yield +0xe9
> >>>>sys_sa_yield +0x7b
> >>>>syscall_plain +0xb3
> >>>>--- syscall (number 334) ---
> >>>>0xbba0b267

Thanks to YAMAMOTO Takashi, his should be fixed by sys/kern/subr_vmem.c 1.21

-- 
Manuel Bouyer, LIP6, Universite Paris VI.           
Manuel.Bouyer%lip6.fr@localhost
     NetBSD: 26 ans d'experience feront toujours la difference
--