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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