Red Hat Bugzilla – Bug 230911
SATA_NV: ADMA, ATA2 hangs, freezes system and does a soft reset
Last modified: 2013-07-02 22:32:08 EDT
Description of problem:
Using Kernel 2.6.20-1.2962.fc7 but has the same problem with 2960. It does not
appear with 2911 under FC6.
Version-Release number of selected component (if applicable):
I don't know because I haven't really found out when it excactly happens. I
think it happens occassionally under load.
Steps to Reproduce:
Mar 4 18:16:55 helios kernel: ata2: EH in ADMA mode, notifier 0x0
notifier_error 0x0 gen_ctl 0x1501000 status 0x500 next cpb count 0x0 next cpb
Mar 4 18:16:55 helios kernel: ata2: CPB 3: ctl_flags 0x1f, resp_flags 0x1
Mar 4 18:16:55 helios kernel: ata2.00: exception Emask 0x0 SAct 0x8 SErr 0x0
action 0x2 frozen
Mar 4 18:16:55 helios kernel: ata2.00: cmd 61/08:18:39:53:76/00:00:2a:00:00/40
tag 3 cdb 0x0 data 4096 out
Mar 4 18:16:55 helios kernel: res 40/00:00:00:00:00/00:00:00:00:00/00
Emask 0x4 (timeout)
Mar 4 18:16:55 helios kernel: ata2: soft resetting port
Mar 4 18:16:55 helios kernel: ata2: SATA link up 3.0 Gbps (SStatus 123 SControl
Mar 4 18:16:55 helios kernel: ata2.00: configured for UDMA/133
Mar 4 18:16:55 helios kernel: ata2: EH complete
Mar 4 18:16:55 helios kernel: SCSI device sda: 781422768 512-byte hdwr sectors
Mar 4 18:16:55 helios kernel: sda: Write Protect is off
Mar 4 18:16:55 helios kernel: SCSI device sda: write cache: enabled, read
cache: enabled, doesn't support DPO or FUA
Please attach an lspci -vxx so I can see what hardware you have and if possible
a dmesg from the boot.
Created attachment 149518 [details]
Output of dmesg
Created attachment 149519 [details]
Output of lscpi -vvv
Thanks this identifies the device concerned, and I've reassigned it to Jeff the
SATA maintainer. It looks like several reports of problems with ADMA mode that
are being worked on currently upstream.
I think this can be closed. It works fine for me with the latest kernels.