Re: kern/38970: slow crashdump on amd64 machine

[Andreas Gustafsson <gson%gson.org@localhost>]

The following reply was made to PR kern/38970; it has been noted by GNATS.

From: Andreas Gustafsson <gson%gson.org@localhost>
To: Martin Husemann <martin%duskware.de@localhost>
Cc: gnats-bugs%NetBSD.org@localhost, christos%zoulas.com@localhost (Christos 
Zoulas), Simon Burge <simonb%NetBSD.org@localhost>
Subject: Re: kern/38970: slow crashdump on amd64 machine
Date: Sat, 20 Jul 2013 15:34:05 +0300

 Martin Husemann wrote:
 > Please provide dmesg excerpts for disk and controller, as we already know
 > this is hardware specific, but we do not know a common denominator yet.
 
 Here:
 
   ahcisata0 at pci0 dev 31 function 2: vendor 0x8086 product 0x1c02 (rev. 0x05)
   ahcisata0: interrupting at ioapic0 pin 19
   ahcisata0: 64-bit DMA
   ahcisata0: AHCI revision 1.30, 6 ports, 32 slots, CAP 
0xe730ff65<SXS,EMS,PSC,SSC,PMD,ISS=0x3=Gen3,SCLO,SAL,SALP,SSNTF,SNCQ,S64A>
   atabus0 at ahcisata0 channel 0
   atabus1 at ahcisata0 channel 1
   atabus2 at ahcisata0 channel 2
   atabus3 at ahcisata0 channel 3
   atabus4 at ahcisata0 channel 4
   atabus5 at ahcisata0 channel 5
 
   ahcisata0 port 0: device present, speed: 3.0Gb/s
   ahcisata0 port 2: device present, speed: 1.5Gb/s
   wd0 at atabus0 drive 0
   wd0: <WDC WD2500KS-00MJB0>
   wd0: drive supports 16-sector PIO transfers, LBA48 addressing
   wd0: 232 GB, 484521 cyl, 16 head, 63 sec, 512 bytes/sect x 488397168 sectors
   wd0: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 6 (Ultra/133)
   wd0(ahcisata0:0:0): using PIO mode 4, DMA mode 2, Ultra-DMA mode 6 
(Ultra/133) (using DMA)
   atapibus0 at atabus2: 1 targets
   cd0 at atapibus0 drive 0: <TSSTcorp CDDVDW SH-S203D, , SB00> cdrom removable
   cd0: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 5 (Ultra/100)
   cd0(ahcisata0:2:0): using PIO mode 4, DMA mode 2, Ultra-DMA mode 5 
(Ultra/100) (using DMA)
 
 This is an Intel DH67CLB3 motherboard with BIOS version 
BLH6710H.86A.0131.2011.0926.1945.
 
 Here's a list of other PRs that apply to the same machine, just in
 case the cause happens to be related:
 
   46596
   46696
   47153
 
 -- 
 Andreas Gustafsson, gson%gson.org@localhost