Messages in this thread | | | From | "Roberto Slepetys Ferreira" <> | Subject | Re: PROBLEM: 2.4.20 os hang when accessing local ide harddrive | Date | Thu, 3 Jul 2003 16:36:35 -0300 |
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Hi Guerrero,
I am having some hangs with the 2.4.20 kernel without isolatting the source of the trouble.
Is there any strange message at /var/log/message ? How do you concluded that is the IDE drive ?
In my linux box, it halts without any clue of what is going on. First I thank that the trouble was with AIC7xxx and SCSI drives, because of a correlation of large I/O and linux halt, but after a big help from Justin Gibbs, when I upgraded the AICxxx module to the newer, the system hangs without the old message: Locking max tag count...
[]s Slepetys
----- Original Message ----- From: "John E. Leon Guerrero" <jguerrero-useatsign-live365.com@nospam.com> To: <linux-kernel@vger.kernel.org> Sent: Thursday, July 03, 2003 3:29 PM Subject: Re: PROBLEM: 2.4.20 os hang when accessing local ide harddrive
> whoops...looks like this made it to linux.kernel according to google. i > thought i was emailing a moderator with whom i'd elaborate further about > the problem :) > > what i did not mention in the first posting is that the processes that > do not touch the "frozen drive" continue to work fine for a couple of > minutes before the entire machine freezes including those that do not > use the "frozen drive". in fact, the machine works great so long as i > avoid the frozen drive. accessing the idle ide drives is the catalyst > which initiates the eventual machine hang. > > the hang can start by trying to list a directory on the ide drive. once > that happens, the ls process cannot be killed. if i try to strace the > ls process, then the strace process also becomes hung and unresponsive > to control-c. i'm not sure why, but eventually the machine will hang > including those processes that do not access the ide drive. in fact, > when my oracle database is down, there is nothing that accesses the ide > drives. the database is normally down since it's a test instance. > > i've noticed 2 ways that the ide drives freeze. > 1. after the machine has been idle all night, i'll go take a look at the > ide filesystem and the hang will begin. > 2. while doing an installation to the ide drive which writes about 2gb > of data, the drive will hang eventually. > > i do not doubt that faulty hardware could be involved. i tried changing > the harddrive which resulted in basically the same failure...just > delayed some. it's also possible that the drive's hardware problem > triggers a more general hardware failure which involves the > motherboard/cpu/memory, etc in which case i would fully expect the > machine to hang like it does. > > on a related note, i had seen a similar "drive hangs and soon after all > processes stop responding" problem on a different machine (completely > different hardware) when i tried to mount a floppy. on this 2nd > machine, that one hang is the only time that it ever happened. the > first machine will hang with relatively predictable frequency. > > i only raise this issue from the perspective of a production server > where partial service availability might be desireable until a planned > service outage could be scheduled to service a faulty drive. > > if this case is at all interesting to pursue, then i would be happy to > help out debugging it with guidance. >
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