Hi Christian, Christian Borntraeger wrote: > Am Freitag, 29. August 2008 schrieb Hannes Reinecke: >> Hmm. Works here, using an unpatched kvm-73. >> Which version did you use? > > I use the s390 userspace prototype kuli which uses an virtio transport similar > to lguest. > > I retried and it seems to race. Most of the time it works fine, but sometimes > sdparm hangs. I will have a 2nd look. > > sysrq-t gives me the following trace: > > Call Trace: > ([<040000000755bc78>] 0x40000000755bc78) > sdparm D 000000000043659e 0 2493 1 > 000000000012004a 000000000744f740 000000000744f778 001896469fd23785 > 000000000744f778 00000000009e5500 000000000043f230 0000000000120130 > 000000000744f778 0000000006d39400 0000000006d39f80 0000000000000001 > 00000000009e6f00 00000000076bf8e8 000000000744f7c8 0000000007530670 > 000000000043f610 0000000000435e66 000000000744f7c8 000000000744f868 > Call Trace: > ([<0000000000435e66>] schedule+0x32e/0x7ec) > [<000000000043659e>] schedule_timeout+0xba/0x10c > [<00000000004358da>] wait_for_common+0xbe/0x1a8 > [<000000000027ec3e>] blk_execute_rq+0x86/0xc4 > [<0000000000282768>] sg_io+0x1a4/0x360 > [<0000000000282f8c>] scsi_cmd_ioctl+0x2bc/0x3f0 > [<00000000002c3108>] virtblk_ioctl+0x44/0x58 > [<000000000027ff18>] blkdev_driver_ioctl+0x98/0xa4 > [<000000000027ffd8>] blkdev_ioctl+0xb4/0x7f8 > [<00000000001e1572>] block_ioctl+0x3a/0x48 > [<00000000001bca0a>] vfs_ioctl+0x52/0xdc > [<00000000001bcb0a>] do_vfs_ioctl+0x76/0x350 > [<00000000001bce6e>] sys_ioctl+0x8a/0xa0 > [<000000000011282c>] sysc_tracego+0xe/0x14 > [<0000020000114286>] 0x20000114286 I'm tempted to say 'not my fault'; the submitted SCSI request on the _host_ hangs and doesn't come back. Looks more like a SCSI problem on the host ... Cheers, Hannes -- Dr. Hannes Reinecke zSeries & Storage hare@xxxxxxx +49 911 74053 688 SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 Nürnberg GF: Markus Rex, HRB 16746 (AG Nürnberg) _______________________________________________ Virtualization mailing list Virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/virtualization
