Date: Sun, 26 Jun 2005 16:59:16 +0200 (CEST) From: Matthias Buelow <mkb@incubus.de> To: FreeBSD-gnats-submit@FreeBSD.org Subject: kern/82668: ATA timeouts on 5.4-stable Message-ID: <200506261459.j5QExGbf000747@drjekyll.mkbuelow.net> Resent-Message-ID: <200506261500.j5QF0WiO062928@freefall.freebsd.org>
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>Number: 82668
>Category: kern
>Synopsis: ATA timeouts on 5.4-stable
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Sun Jun 26 15:00:31 GMT 2005
>Closed-Date:
>Last-Modified:
>Originator: Matthias Buelow
>Release: FreeBSD 5.4-STABLE i386
>Organization:
>Environment:
System: FreeBSD xxx 5.4-STABLE FreeBSD 5.4-STABLE #3: Thu Jun 23 13:51:15 CEST 2005 root@xxx:/usr/obj/usr/src/sys/xxx i386
>Description:
Since I upgraded to 5.4-STABLE on June 21, I occasionally get on
boot the following:
ad4: TIMEOUT - READ_DMA retrying (2 retries left) LBA=0
ad4: FAILURE - ATA_IDENTIFY timed out
ad4: FAILURE - ATA_IDENTIFY timed out
ad4: WARNING - removed from configuration
ata2-master: FAILURE - READ_DMA timed out
at which point the kernel gives up since it cannot find the root fs.
This seems to happen only at boot, and not everytime (perhaps
at 1/4 of all boot attempts, on average). If the machine actually
manages to boot, then all seems well, and I haven't yet seen it
when the system was running. Windows XP is also on the box and it
doesn't seem to have any problems. I also didn't encounter any
problems of that kind with earlier 5.4-STABLE snapshots.
The machine is using the Intel ICH6 chipset, with disk and controller
as following:
atapci1: <Intel ICH6 SATA150 controller> port 0xfea0-0xfeaf,0xfe30-0xfe33,0xfe20-0xfe27,0xfe10-0xfe13,0xfe00-0xfe07 irq 20 at device 31.2 on pci0
ad4: 152627MB <ST3160023AS/8.05> [310101/16/63] at ata2-master SATA150
>How-To-Repeat:
>Fix:
>Release-Note:
>Audit-Trail:
>Unformatted:
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