Description of problem: non-existent ata3, and ata4 are probed at boot time Version-Release number of selected component (if applicable): Linux homayoun 2.6.18-8.1.1.el5 #1 SMP Mon Feb 26 20:37:57 EST 2007 x86_64 x86_64 x86_64 GNU/Linux How reproducible: Always, just boot the system Steps to Reproduce: 1.Boot 2.Observe! 3. Actual results: It takes a long time to boot, due waiting for time out on non-existent ata3, and ata4. The following messages are printed from dmseg: ata3: SATA max UDMA/133 cmd 0xFE40 ctl 0xFE52 bmdma 0xFED0 irq 50 ata4: SATA max UDMA/133 cmd 0xFE60 ctl 0xFE72 bmdma 0xFED8 irq 50 scsi2 : ata_piix ata3: port is slow to respond, this delay is known to occur on vacant SATA ports ata3: port failed to respond (30 secs) ata3: SRST failed (status 0xFF) ata3: SRST failed (err_mask=0x100) ata3: softreset failed, retrying in 5 secs ata3: SRST failed (status 0xFF) ata3: SRST failed (err_mask=0x100) ata3: softreset failed, retrying in 5 secs ata3: SRST failed (status 0xFF) ata3: SRST failed (err_mask=0x100) ata3: reset failed, giving up scsi3 : ata_piix ata4: port is slow to respond, this delay is known to occur on vacant SATA ports ata4: port failed to respond (30 secs) ata4: SRST failed (status 0xFF) ata4: SRST failed (err_mask=0x100) ata4: softreset failed, retrying in 5 secs ata4: SRST failed (status 0xFF) ata4: SRST failed (err_mask=0x100) ata4: softreset failed, retrying in 5 secs ata4: SRST failed (status 0xFF) ata4: SRST failed (err_mask=0x100) ata4: reset failed, giving up Expected results: It should be detected that ata3, and ata4 do not exist. Additional info:
I compiled and ran kernel 2.6.20. This version of the kernel fixes the issue that I have mentioned above. There is still about 1 or 2 seconds of delay, but no where near the 2 minutes it used to take with redhat's kernel 2.6.18.
This will be fixed in the SATA update for R5.1.
This request was evaluated by Red Hat Product Management for inclusion in a Red Hat Enterprise Linux maintenance release. Product Management has requested further review of this request by Red Hat Engineering, for potential inclusion in a Red Hat Enterprise Linux Update release for currently deployed products. This request is not yet committed for inclusion in an Update release.
is there already a rawhide kernel which has the fix included?
The new 2.6.18-53 (rhel 5.1) fixes this issue.