[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] HVM restore broken?
berger, you run 32 linux on 64b HV, right? i can reproduce this bug in such combination on latest change set, but have no console MFN & set maxmem err msg. i doubt some memory restore issue here. thanks, On Sat, Jan 27, 2007 at 11:57:09AM -0500, Stefan Berger wrote: > I tried suspend/resume with a Linux guest with 1 processor. > > I get the following errors in xend's log file upon resume. > > [...] > [2007-01-27 11:44:06 3629] DEBUG (XendDomainInfo:775) Storing domain > details: {'console/port': '3', 'name': 'TCG-TEST', 'console/limit': > '1048576', 'vm': '/vm/b0aaf4ff-ede8-994d-551c-23da391edbf2', 'domid': '4', > 'cpu/0/availability': 'online', 'memory/target': '196608', 'store/port': > '2'} > [2007-01-27 11:44:06 3629] INFO (XendCheckpoint:207) restore hvm domain 4, > mem=192, apic=1, pae=1 > [2007-01-27 11:44:06 3629] DEBUG (XendCheckpoint:226) restore:shadow=0x3, > _static_max=0xd0, _static_min=0xc0, nr_pfns=0xc000. > [2007-01-27 11:44:06 3629] DEBUG (balloon:127) Balloon: 258044 KiB free; > need 199680; done. > [2007-01-27 11:44:06 3629] DEBUG (XendCheckpoint:236) [xc_restore]: > /usr/lib/xen/bin/xc_restore 22 4 49152 2 3 192 1 1 > [2007-01-27 11:44:06 3629] INFO (XendCheckpoint:340) xc_hvm_restore:dom=4, > nr_pfns=0xc000, store_evtchn=2, *store_mfn=192, console_evtchn=3, > *console_mfn=-1208080352, pae=1, apic=1. > [2007-01-27 11:44:06 3629] INFO (XendCheckpoint:340) xc_hvm_restore start: > max_pfn = c000, max_mfn = 3f700, hvirt_start=f5800000, pt_levels=3 > [2007-01-27 11:44:07 3629] INFO (XendCheckpoint:340) hvm restore:calculate > new store_mfn=0xbffe,v_end=0xc000000.. > [2007-01-27 11:44:07 3629] INFO (XendCheckpoint:340) hvm restore:get > nr_vcpus=1. > [2007-01-27 11:44:07 3629] INFO (XendCheckpoint:340) Restore exit with > rc=0 > [2007-01-27 11:44:07 3629] DEBUG (XendCheckpoint:311) store-mfn 49150 > [2007-01-27 11:44:07 3629] DEBUG (XendCheckpoint:311) console-mfn > -1208080352 > [2007-01-27 11:44:07 3629] DEBUG (XendDomainInfo:1558) > XendDomainInfo.destroy: domid=4 > [2007-01-27 11:44:07 3629] DEBUG (XendDomainInfo:1566) > XendDomainInfo.destroyDomain(4) > [2007-01-27 11:44:07 3629] ERROR (XendDomain:1030) Restore failed > Traceback (most recent call last): > File "//usr/lib/python/xen/xend/XendDomain.py", line 1025, in > domain_restore_fd > return XendCheckpoint.restore(self, fd, paused=paused) > File "//usr/lib/python/xen/xend/XendCheckpoint.py", line 243, in restore > raise XendError('Could not read store/console MFN') > XendError: Could not read store/console MFN > > In the qemu dm's log file I see this here --- notice the 'error 22': > > domid: 3 > qemu: the number of cpus is 1 > qemu_map_cache_init nr_buckets = c00 > shared page at pfn:bfff > buffered io page at pfn:bffd > xs_read(): vncpasswd get error. > /vm/b0aaf4ff-ede8-994d-551c-23da391edbf2/vncpasswd. > I/O request not ready: 0, ptr: 0, port: 0, data: 0, count: 0, size: 0 > suspend sig handler called with requested=0! > device model received suspend signal! > set maxmem returned error 22 > cirrus_stop_acc:unset_vram_mapping. > > 'xm dmesg' shows this here (trying multiple times to resume): > > (XEN) HVM S/R Loading "xen_hvm_i8259" instance 0x20 > (XEN) HVM S/R Loading "xen_hvm_i8259" instance 0xa0 > (XEN) HVM S/R Loading "xen_hvm_ioapic" instance 0x0 > (XEN) HVM S/R Loading "xen_hvm_cpu" instance 0x0 > (XEN) HVM S/R Loading "xen_hvm_lapic" instance 0x0 > (XEN) HVM S/R Loading "xen_hvm_i8254" instance 0x40 > (XEN) HVM S/R Loading "xen_hvm_shpage" instance 0x10 > (XEN) HVM S/R Loading "xen_hvm_i8259" instance 0x20 > (XEN) HVM S/R Loading "xen_hvm_i8259" instance 0xa0 > (XEN) HVM S/R Loading "xen_hvm_ioapic" instance 0x0 > (XEN) HVM S/R Loading "xen_hvm_cpu" instance 0x0 > (XEN) HVM S/R Loading "xen_hvm_lapic" instance 0x0 > (XEN) HVM S/R Loading "xen_hvm_i8254" instance 0x40 > (XEN) HVM S/R Loading "xen_hvm_shpage" instance 0x10 > > Stefan > > xen-devel-bounces@xxxxxxxxxxxxxxxxxxx wrote on 01/27/2007 08:53:07 AM: > > > Mats, > > > > at least 32b up windows on 32b HV save/restore works here. > > > > what's your configuration? 32 or 64 windows/HV? up or smp? > > > > BTW, can you have a try with linux guest? > > > > > > On Fri, Jan 26, 2007 at 06:41:13PM +0100, Petersson, Mats wrote: > > > I got latest (13601) yesterday evening. This doesn't seem to work to > do > > > Restore (at least of the Windows test-image that I've been using for > > > testing previously). > > > > > > The VM restores reasonably OK, but it jumps to an invalid address > > > shortly after restoring, giving a D1 blue-screen error > > > (DRIVER_IRQL_LESS_OR_EQUAL), which turns out to be "page-fault in > > > driver" after I looked at the memory dump in windbg. (The address it > > > jumps to is consistenly a0000ca5, if that's of any meaning to anyone). > > > > > > I've compared my svm.c that I had previously and the current one that > I > > > got from mercurial, and they are identical. > > > > > > I went back to my 13568 build of the hypervisor, and it works there... > > > There's no obvious changes in between... > > > > > > Has anyone else tried this, does anyone have an idea of what's going > > > wrong? > > > > > > -- > > > Mats > > > > > > > > > > > > _______________________________________________ > > > Xen-devel mailing list > > > Xen-devel@xxxxxxxxxxxxxxxxxxx > > > http://lists.xensource.com/xen-devel > > > > > > > -- > > best rgds, > > edwin > > > > _______________________________________________ > > Xen-devel mailing list > > Xen-devel@xxxxxxxxxxxxxxxxxxx > > http://lists.xensource.com/xen-devel -- best rgds, edwin _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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