System freeze on large file/heavy disk
-- Background:
I'm running on nforce4 (Tyan K8WE), dual opteron, 3 SATA hard drives (1x36 gb and 2x74 gb WD raptors), 3 GB RAM, installed CentOS 4.4 and ran yum update. # uname -a Linux localhost.localdomain 2.6.9-42.0.3.ELsmp #1 SMP Fri Oct 6 06:28:26 CDT 2006 x86_64 x86_64 x86_64 GNU/Linux I set SELinux to warn when installing CentOS. -- Problem: I mounted an ntfs file system and tried to copy over a bunch of files, some of which were large (~1 GB). The system would freeze up (no UI response to input) when it was processing a large file. During this, I see lots of these in syslog: Nov 14 14:40:47 localhost kernel: ata3: command 0xc8 timeout, stat 0x50 host_stat 0x24 Nov 14 14:40:47 localhost kernel: ata3: status=0x50 { DriveReady SeekComplete } Nov 14 14:40:47 localhost kernel: Info fld=0x33ca186, Current sdb: sense key No Sense Nov 14 14:40:47 localhost kernel: ata4: command 0xca timeout, stat 0x50 host_stat 0x24 Nov 14 14:40:47 localhost kernel: ata4: status=0x50 { DriveReady SeekComplete } Nov 14 14:40:47 localhost kernel: Info fld=0x2000000, Current sdc: sense key No Sense Nov 14 14:40:47 localhost kernel: ata3: command 0xc8 timeout, stat 0x50 host_stat 0x24 I was setting up vmware and it was creating a virtual disk of 32 GB. The system froze--I let it site for over an hour. After a hard reset, I checked and it had only set up under 3 GB. Any ideas what's causing this freeze? Thanks! |
Solved, I think
I found a kernel bug that looked the same that said it was fixed in 2.6.17, so I upgraded the kernel to 2.6.18, but it still happened after that.
I tweaked various settings and services, checked and found that my bios was two versions old so upgrade that, and now it's been running for a couple hours without problems, so hopefully one of those things fixed it. |
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