Re: Virtual SCSI disks hangs on heavy IO

2011-05-24 Thread Scott
Guido Winkelmann guido-kvml at thisisnotatest.de writes: Hi, I am experiencing hangs in disk IO in systems hosted inside a virtual KVM machine. When the virtual system disk is SCSI and when I am doing a lot of I/O on it, I will eventually get error messages on the console and in dmesg

Re: Virtual SCSI disks hangs on heavy IO

2011-03-18 Thread Guido Winkelmann
Am Wednesday 16 March 2011 schrieb Stefan Hajnoczi: On Tue, Mar 15, 2011 at 1:20 PM, Guido Winkelmann guido-k...@thisisnotatest.de wrote: Am Tuesday 15 March 2011 schrieben Sie: On Mon, Mar 14, 2011 at 10:57 PM, Guido Winkelmann guido-k...@thisisnotatest.de wrote: On Monday 14

Re: Virtual SCSI disks hangs on heavy IO

2011-03-18 Thread Stefan Hajnoczi
On Fri, Mar 18, 2011 at 4:06 PM, Guido Winkelmann guido-k...@thisisnotatest.de wrote: Am Wednesday 16 March 2011 schrieb Stefan Hajnoczi: On Tue, Mar 15, 2011 at 1:20 PM, Guido Winkelmann guido-k...@thisisnotatest.de wrote: Am Tuesday 15 March 2011 schrieben Sie: On Mon, Mar 14, 2011 at

Re: Virtual SCSI disks hangs on heavy IO

2011-03-15 Thread Stefan Hajnoczi
On Mon, Mar 14, 2011 at 10:57 PM, Guido Winkelmann guido-k...@thisisnotatest.de wrote: On Monday 14 March 2011 20:32:23 Stefan Hajnoczi wrote: On Mon, Mar 14, 2011 at 6:05 PM, Guido Winkelmann guido-k...@thisisnotatest.de wrote: Does anybody have an idea what might cause this or what might

Re: Virtual SCSI disks hangs on heavy IO

2011-03-15 Thread Alexander Graf
On 15.03.2011, at 08:09, Stefan Hajnoczi wrote: On Mon, Mar 14, 2011 at 10:57 PM, Guido Winkelmann guido-k...@thisisnotatest.de wrote: On Monday 14 March 2011 20:32:23 Stefan Hajnoczi wrote: On Mon, Mar 14, 2011 at 6:05 PM, Guido Winkelmann guido-k...@thisisnotatest.de wrote: Does

Re: Virtual SCSI disks hangs on heavy IO

2011-03-15 Thread Stefan Hajnoczi
On Tue, Mar 15, 2011 at 7:47 AM, Alexander Graf ag...@suse.de wrote: On 15.03.2011, at 08:09, Stefan Hajnoczi wrote: On Mon, Mar 14, 2011 at 10:57 PM, Guido Winkelmann guido-k...@thisisnotatest.de wrote: On Monday 14 March 2011 20:32:23 Stefan Hajnoczi wrote: On Mon, Mar 14, 2011 at 6:05

Re: Virtual SCSI disks hangs on heavy IO

2011-03-15 Thread Alexander Graf
On 15.03.2011, at 10:03, Stefan Hajnoczi wrote: On Tue, Mar 15, 2011 at 7:47 AM, Alexander Graf ag...@suse.de wrote: On 15.03.2011, at 08:09, Stefan Hajnoczi wrote: On Mon, Mar 14, 2011 at 10:57 PM, Guido Winkelmann guido-k...@thisisnotatest.de wrote: On Monday 14 March 2011 20:32:23

Re: Virtual SCSI disks hangs on heavy IO

2011-03-15 Thread Alexander Graf
On 15.03.2011, at 10:03, Stefan Hajnoczi wrote: On Tue, Mar 15, 2011 at 7:47 AM, Alexander Graf ag...@suse.de wrote: On 15.03.2011, at 08:09, Stefan Hajnoczi wrote: On Mon, Mar 14, 2011 at 10:57 PM, Guido Winkelmann guido-k...@thisisnotatest.de wrote: On Monday 14 March 2011 20:32:23

Re: Virtual SCSI disks hangs on heavy IO

2011-03-15 Thread Stefan Hajnoczi
On Tue, Mar 15, 2011 at 9:16 AM, Alexander Graf ag...@suse.de wrote: On 15.03.2011, at 10:03, Stefan Hajnoczi wrote: On Tue, Mar 15, 2011 at 7:47 AM, Alexander Graf ag...@suse.de wrote: On 15.03.2011, at 08:09, Stefan Hajnoczi wrote: On Mon, Mar 14, 2011 at 10:57 PM, Guido Winkelmann

Re: Virtual SCSI disks hangs on heavy IO

2011-03-15 Thread Guido Winkelmann
Am Tuesday 15 March 2011 schrieben Sie: On Mon, Mar 14, 2011 at 10:57 PM, Guido Winkelmann guido-k...@thisisnotatest.de wrote: On Monday 14 March 2011 20:32:23 Stefan Hajnoczi wrote: On Mon, Mar 14, 2011 at 6:05 PM, Guido Winkelmann guido-k...@thisisnotatest.de wrote: Does anybody

Virtual SCSI disks hangs on heavy IO

2011-03-14 Thread Guido Winkelmann
Hi, I am experiencing hangs in disk IO in systems hosted inside a virtual KVM machine. When the virtual system disk is SCSI and when I am doing a lot of I/O on it, I will eventually get error messages on the console and in dmesg like these: sd 0:0:0:0: [sda] ABORT operation started sd

Re: Virtual SCSI disks hangs on heavy IO

2011-03-14 Thread Stefan Hajnoczi
On Mon, Mar 14, 2011 at 6:05 PM, Guido Winkelmann guido-k...@thisisnotatest.de wrote: Does anybody have an idea what might cause this or what might be done about it? The lsi_scsi emulation code is incomplete. It does not handle some situations like the ORDERED commands or message 0x0c. There

Re: Virtual SCSI disks hangs on heavy IO

2011-03-14 Thread Guido Winkelmann
On Monday 14 March 2011 20:32:23 Stefan Hajnoczi wrote: On Mon, Mar 14, 2011 at 6:05 PM, Guido Winkelmann guido-k...@thisisnotatest.de wrote: Does anybody have an idea what might cause this or what might be done about it? The lsi_scsi emulation code is incomplete. It does not handle