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#1 2006-02-17 17:43:16

Registered: 2005-11-07
Posts: 32

SCSI Disc Read-Only

i have Arch linux installed on my SCSI disc (Seagate Cheetah 18GB)
my controler is

Adaptec AHA-2940U/UW / AHA-39xx / AIC-7895 (rev 04)

working on kernel 2.6.15-ARCH (from 0.7.1 installation CD)
with default initrd ....

sometimes i get error like

(scsi0:A:0:0): Unexpected busfree in Data-out phase
SEQADDR == 0x7d
sd 0:0:0:0: SCSI error: return code = 0x10000
end_request: I/O error, dev sda, sector 664214
Buffer I/O error on device sda3, logical block 6718
lost page write due to I/O error on sda3

and my filesystem goes read-only ... after reset everything goes back to normal ... how i can prevent going read-only on "/" and restarting my linux ?


#2 2006-02-17 21:48:08

Registered: 2004-04-29
Posts: 657

Re: SCSI Disc Read-Only

have a look wether mkinitrd put aic7xxx along with aic79xx into the ramdisk. if so, they are most likely conflicting with each other. hmm

i suggest to exclude one of them in mkinitrd.conf.

I recognize that while theory and practice are, in theory, the same, they are, in practice, different. -Mark Mitchell


#3 2006-02-17 23:08:29

From: Chicago IL usa
Registered: 2004-07-04
Posts: 695

Re: SCSI Disc Read-Only

id recommend going into scsi setup & verify the disc
it will reassign any bad sectors
i have the same scsi card with 2  73gb  10000 rpmm used drives on it with no problems so far (knock knock) check it out theyre pretty cheap the 2 i got are quiet & good condition … T173404LCV
the disc verify may cause some data loss or corruption if any sectors are bad &  reassigned
if not then it shouldnt damage any data on disc 
ive not had any sectors reassigned on my current drives but i have had it in the past with no data on disc so i couldnt say for sure what outcome you may experience


#4 2006-02-18 00:34:01

Registered: 2005-11-07
Posts: 32

Re: SCSI Disc Read-Only

i veryfied disc as i bought it and it showed that disc is ok

and yes both modules was loaded
now i created my own initrd ... and we will see

tx for help smile


#5 2006-02-19 11:45:53

Registered: 2005-11-07
Posts: 32

Re: SCSI Disc Read-Only

well disabling one of modules doesn't help
i created my own initrd with


and only this module is loadedfor my scsi controller
but i still get error

after error i restarted my computer and runned

Drive Verify

in SCSI Controller Setup (Ctrl-A at start up) and and drive was veryfied without  any error so i guess that isn't my drive problem hmm

maybe will help that after this error my linux doesn't hang-up .. just FS goes readonly .. i still can read every file on disc .. just cannot write to them hmm

... after restart everything is ok for about 2-3 days ....

please help ..


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