HEADS UP [Re: Insta-panic with recent -current on Ultra10]

[Chris Knight]

Howdy,

I'm still getting this panic on sources updated just before
you tagged newvers.sh for BETA2.

ad0: 8693MB <ST39140A/861000> [17662/16/63] at ata2-master WDMA2
ATAPI_RESET time = 100us
acd0: CDRW <CRD-8322B/1.05> at ata3-master PIO4
Mounting root from ufs:/dev/ad0a
IOMMU fault virtual address 0xc0620000
panic: pcib: uncorrectable DMA error AFAR 0xf9a5880 AFSR 0x270000ff00000000
KDB: stack backtrace:
psycho_ue() at psycho_ue+0x70
intr_fast() at intr_fast+0x88
-- interrupt level=0xd pil=0 %o7=0xc01d4b28 --
vm_page_zero_check() at vm_page_zero_check+0xb4
fork_exit() at fork_exit+0x9c
fork_trampoline() at fork_trampoline+0x8
KDB: enter: panic
[thread 100040]
Stopped at      kdb_enter+0x3c: ta              %xcc, 1
db> 

My ddb skills are, well, crap.
Any pointers to help debugging this would be helpful.

Regards,
Chris Knight
Systems Administrator
E-Easy
Tel: +61 3 6334 9995  Fax: +61 3 6331 7032  Mob: +61 419 528 795
Web: http://www.e-easy.com.au
 

> -----Original Message-----
> From: Scott Long [mailto:scottl at samsco.org] 
> Sent: Thursday, 19 August 2004 3:20 AM
> To: Ken Smith
> Cc: Gavin Atkinson; Chris Knight; sparc64 at freebsd.org
> Subject: HEADS UP [Re: Insta-panic with recent -current on Ultra10]
> 
> All,
> 
> This is likely my fault, not Soeren's.  I'm going to try to 
> fix it the right way before BETA1 rather than ask Soeren to 
> re-add the ugly fix-up code.
> 
> Scott