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

2007-11-05 Thread Kris Kennaway
Oleg Derevenetz wrote: Anyway, I looked at the ddb output already, said that it looks as either driver or hw problem with very high confidence. I think the time of the project could be spent more productive elsewere, while submitter checks his hardware, for instance, by changing controller, di

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

2007-11-05 Thread Oleg Derevenetz
Anyway, I looked at the ddb output already, said that it looks as either driver or hw problem with very high confidence. I think the time of the project could be spent more productive elsewere, while submitter checks his hardware, for instance, by changing controller, disks, or controller type.

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

2007-11-05 Thread Kris Kennaway
Kostik Belousov wrote: On Sun, Nov 04, 2007 at 11:26:20PM +0100, Kris Kennaway wrote: Oleg Derevenetz wrote: 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

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

2007-11-05 Thread Kostik Belousov
On Sun, Nov 04, 2007 at 11:26:20PM +0100, Kris Kennaway wrote: > Oleg Derevenetz wrote: > >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 di

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

2007-11-04 Thread Oleg Derevenetz
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 coul

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

2007-11-04 Thread Kris Kennaway
Oleg Derevenetz wrote: 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 controlle

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

2007-11-04 Thread Oleg Derevenetz
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 coul

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

2007-11-04 Thread Kris Kennaway
Oleg Derevenetz wrote: 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 controlle

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

2007-11-01 Thread Oleg Derevenetz
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 coul

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

2007-10-30 Thread Kris Kennaway
Oleg Derevenetz wrote: > > After my break to debugger using Ctrl+Alt+Esc sequence and entering a > > "panic" command kernel does not wrote a kernel dump but seems to > > hang. Can > > anyone describe how to obtain a kernel dump in this situation, or at least > > say - which output of show comma

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

2007-10-29 Thread Oleg Derevenetz
> Oleg, one thing you can do to make this less painful is to > run your machine's console over serial port. > > First get a crossover serial cable, make sure it works from one > box to another, it should be easy to run "tip com1" on both > boxes to ensure that it works. > > Then you just need to a

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

2007-10-22 Thread Oleg Derevenetz
> > Can anyone take a look on PR kern/104406 ? I got repeatable hang situation, > > but I can't obtain a kernel dump to get result of all show commands from > > here: > > > > http://www.freebsd.org/doc/en_US.ISO8859-1/books/developers-handbook/kerneldebug-deadlocks.html > > > > After my break to d

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

2007-10-21 Thread Oleg Derevenetz
> > After my break to debugger using Ctrl+Alt+Esc sequence and entering a > > "panic" command kernel does not wrote a kernel dump but seems to > > hang. Can > > anyone describe how to obtain a kernel dump in this situation, or at least > > say - which output of show commands need in first place