Joerg Roedel wrote:
I didn't follow your discussion about the problem in the #kvm channel. Could you provide more information about the problem itself and about your test environment? If I am able to reproduce the problem, we may be able to fix it.
Sure.My host is a Dell SC1435, with 2 dual core Opteron 2212 HE's @2GHz. There's 4Gb memory and a 120Gb Sata disk (sata_svw). The host is running FC6 x86_64 with 'kernel-2.6.19-1.2906.fc7' (2.6.20-rc4 from fc7 devel) and kvm-12. (The fc kernel comes with the kvm drivers from an earlier version, i've deleted these and have been testing bith the trunk and release kvm code).
The symptoms I saw were that the guest was not able to access any hd* devices 'properly'. The local boot iso images (I tried the fc6 installer and some live-cd's) booted the kernel, but when linux attempted to enumerate the hd devices (before init) it stalled and eventually printed errors like 'hda: lost interrupt' and 'drive ready seek command failed' et al.
I got to the point of turning on the debug messages from qemu/hw/ide.c (DEBUG_IDE*). At the point where the guest stalled (just after printing the CHS of hda) the host printed 'ide: CMD=91' (then there was a significant pause before anything else was printed). The guest then prints 'hda: lost interrupt' and the next pause was just after 'ide: CMD=10' (it then carries on like this until I give up hope and ctrl-c qemu). I've attached the debug output from that test.
The box is not live atm - so I have carte blanche to run any tests should you not be able to reproduce this yourselves.
Thanks, Matt
debug.log.bz2
Description: application/bzip
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