kern/104406: [ufs] Processes get stuck in "ufs" stateunderpersistent CPU load

Oleg Derevenetz oleg at
Sun Nov 4 12:15:47 PST 2007

>>>> Dumpdev is swap partition on da0 (single physical disk) that 
>>>> connected to Mylex AcceleRAID 170 RAID controller. The problem 
>>>> arrives when I copy large amount of files from FTP to another disk 
>>>> (da1) that is connected to the same RAID controller.
>>> If the driver or controller is misbehaving it could explain both 
>>> problems. Any chance you can get another disk in there on a different 
>>> controller to dump onto?
>> Yes, I got IDE disk and saved kernel dump for another static hang state 
>> on it. Here is the dump:
> Is this just the vmcore, or the debugging kernel also?  Both are needed 
> to make sense of the dump.

Kernel binary with kernel config is here:

This kernel was built statically, and no modules loaded on boot at all.

Oleg Derevenetz <oleg at> OOD3-RIPE
Phone: +7 4732 539880
Fax:   +7 4732 531415
CenterTelecom Voronezh ISP

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