Re: [kvm-devel] kvm causing memory corruption? ~2.6.25-rc6
Dave Hansen wrote: On Wed, 2008-03-26 at 18:58 +0200, Avi Kivity wrote: Dave Hansen wrote: On Wed, 2008-03-26 at 11:50 +0200, Avi Kivity wrote: Dave Hansen wrote: I was getting some kvm userspace crashes trying to run a Windows guest. So, I decided to try a recent kernel (2.6.25-rc6-00333-ga4083c9) with the kvm kernel code that shipped with that kernel. This is fixed in 2.6.25-rc7. I just updated to -rc7 and re-tested. Same symptoms: Bad. Which kvm userspace are you running? ~/src/kvm-userspace$ git describe kvm-63-118-g52be1a1 I dug out my i386 install and tried it. Doesn't reproduce for me on either kvm.git or -rc7. Do you have a working setup that we can bisect? -- error compiling committee.c: too many arguments to function - Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://ad.doubleclick.net/clk;164216239;13503038;w?http://sf.net/marketplace ___ kvm-devel mailing list kvm-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/kvm-devel
Re: [kvm-devel] kvm causing memory corruption? ~2.6.25-rc6
Avi Kivity wrote: Dave Hansen wrote: On Wed, 2008-03-26 at 18:58 +0200, Avi Kivity wrote: Dave Hansen wrote: On Wed, 2008-03-26 at 11:50 +0200, Avi Kivity wrote: Dave Hansen wrote: I was getting some kvm userspace crashes trying to run a Windows guest. So, I decided to try a recent kernel (2.6.25-rc6-00333-ga4083c9) with the kvm kernel code that shipped with that kernel. [...] btw, is this with = 4GB RAM on the host? -- error compiling committee.c: too many arguments to function - Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://ad.doubleclick.net/clk;164216239;13503038;w?http://sf.net/marketplace ___ kvm-devel mailing list kvm-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/kvm-devel
Re: [kvm-devel] kvm causing memory corruption? ~2.6.25-rc6
Dave Hansen wrote: On Thu, 2008-03-27 at 12:10 +0200, Avi Kivity wrote: btw, is this with = 4GB RAM on the host? Well, are you asking whether I have PAE on or not? :) No, I'm asking whether there is a possibility of address truncation :) PAE by itself doesn't affect kvm much, as it always runs the guest in pae mode. Can you try running with mem=2000M or something? -- error compiling committee.c: too many arguments to function - Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://ad.doubleclick.net/clk;164216239;13503038;w?http://sf.net/marketplace ___ kvm-devel mailing list kvm-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/kvm-devel
Re: [kvm-devel] kvm causing memory corruption? ~2.6.25-rc6
On Thu, 2008-03-27 at 11:36 +0200, Avi Kivity wrote: I dug out my i386 install and tried it. Doesn't reproduce for me on either kvm.git or -rc7. Do you have a working setup that we can bisect? I don't really have a working revision to bisect against. I'm not sure that it ever worked. It's also on my actual laptop, so it's a bit of a pain to get any other work done while I'm bisecting. :) I'll move the Windows image over to another machine today and see if I can reproduce elsewhere. I'll also check some older versions of KVM to see if any of those work. If I do that, should I keep the kvm userspace, modules and BIOSes all synchronized from each version that I test? -- Dave - Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://ad.doubleclick.net/clk;164216239;13503038;w?http://sf.net/marketplace ___ kvm-devel mailing list kvm-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/kvm-devel
Re: [kvm-devel] kvm causing memory corruption? ~2.6.25-rc6
On Thu, 2008-03-27 at 17:53 +0200, Avi Kivity wrote: Dave Hansen wrote: On Thu, 2008-03-27 at 11:36 +0200, Avi Kivity wrote: I dug out my i386 install and tried it. Doesn't reproduce for me on either kvm.git or -rc7. Do you have a working setup that we can bisect? I don't really have a working revision to bisect against. I'm not sure that it ever worked. I'm fairly sure Windows works on kvm... Oh, I didn't mean to imply that Windows doesn't work, just that the particular perverted way in which I'm poking it may have never worked. :) How did you generate the image? The original install was done in a kqemu-accelerated host. It's also on my actual laptop, so it's a bit of a pain to get any other work done while I'm bisecting. :) I'll move the Windows image over to another machine today and see if I can reproduce elsewhere. I'll also check some older versions of KVM to see if any of those work. If I do that, should I keep the kvm userspace, modules and BIOSes all synchronized from each version that I test? You can keep the userspace (qemu + bios) fixed and change the kernel, or vice versa. -- Dave - Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://ad.doubleclick.net/clk;164216239;13503038;w?http://sf.net/marketplace ___ kvm-devel mailing list kvm-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/kvm-devel
Re: [kvm-devel] kvm causing memory corruption? ~2.6.25-rc6
On Thu, 2008-03-27 at 16:59 +0200, Avi Kivity wrote: Dave Hansen wrote: On Thu, 2008-03-27 at 12:10 +0200, Avi Kivity wrote: btw, is this with = 4GB RAM on the host? Well, are you asking whether I have PAE on or not? :) No, I'm asking whether there is a possibility of address truncation :) PAE by itself doesn't affect kvm much, as it always runs the guest in pae mode. Can you try running with mem=2000M or something? Oh, sure. I'll give that a shot. -- Dave - Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://ad.doubleclick.net/clk;164216239;13503038;w?http://sf.net/marketplace ___ kvm-devel mailing list kvm-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/kvm-devel
Re: [kvm-devel] kvm causing memory corruption? ~2.6.25-rc6
Dave Hansen wrote: I was getting some kvm userspace crashes trying to run a Windows guest. So, I decided to try a recent kernel (2.6.25-rc6-00333-ga4083c9) with the kvm kernel code that shipped with that kernel. This is fixed in 2.6.25-rc7. -- Do not meddle in the internals of kernels, for they are subtle and quick to panic. - Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://ad.doubleclick.net/clk;164216239;13503038;w?http://sf.net/marketplace ___ kvm-devel mailing list kvm-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/kvm-devel
Re: [kvm-devel] kvm causing memory corruption? ~2.6.25-rc6
Dave Hansen wrote: On Wed, 2008-03-26 at 11:50 +0200, Avi Kivity wrote: Dave Hansen wrote: I was getting some kvm userspace crashes trying to run a Windows guest. So, I decided to try a recent kernel (2.6.25-rc6-00333-ga4083c9) with the kvm kernel code that shipped with that kernel. This is fixed in 2.6.25-rc7. I just updated to -rc7 and re-tested. Same symptoms: Bad. Which kvm userspace are you running? -- error compiling committee.c: too many arguments to function - Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://ad.doubleclick.net/clk;164216239;13503038;w?http://sf.net/marketplace ___ kvm-devel mailing list kvm-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/kvm-devel
Re: [kvm-devel] kvm causing memory corruption? ~2.6.25-rc6
On Wed, 2008-03-26 at 18:58 +0200, Avi Kivity wrote: Dave Hansen wrote: On Wed, 2008-03-26 at 11:50 +0200, Avi Kivity wrote: Dave Hansen wrote: I was getting some kvm userspace crashes trying to run a Windows guest. So, I decided to try a recent kernel (2.6.25-rc6-00333-ga4083c9) with the kvm kernel code that shipped with that kernel. This is fixed in 2.6.25-rc7. I just updated to -rc7 and re-tested. Same symptoms: Bad. Which kvm userspace are you running? ~/src/kvm-userspace$ git describe kvm-63-118-g52be1a1 -- Dave - Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://ad.doubleclick.net/clk;164216239;13503038;w?http://sf.net/marketplace ___ kvm-devel mailing list kvm-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/kvm-devel
Re: [kvm-devel] kvm causing memory corruption? ~2.6.25-rc6
On Wed, 2008-03-26 at 11:50 +0200, Avi Kivity wrote: Dave Hansen wrote: I was getting some kvm userspace crashes trying to run a Windows guest. So, I decided to try a recent kernel (2.6.25-rc6-00333-ga4083c9) with the kvm kernel code that shipped with that kernel. This is fixed in 2.6.25-rc7. I just updated to -rc7 and re-tested. Same symptoms: [ 751.033545] BUG: unable to handle kernel paging request at 0096b848 [ 751.040082] IP: [c01a0636] d_instantiate+0x26/0x50 [ 751.048065] Oops: 0002 [#1] SMP [ 751.052057] Modules linked in: kvm_intel kvm nls_iso8859_1 vfat fat rfcomm l2cap tun ppdev acpi_cpufreq cpufreq_ondemand cpe [ 751.052057] [ 751.052057] Pid: 8743, comm: evolution Not tainted (2.6.25-rc7 #146) [ 751.052057] EIP: 0060:[c01a0636] EFLAGS: 00210286 CPU: 0 [ 751.052057] EIP is at d_instantiate+0x26/0x50 [ 751.052057] EAX: 0096b844 EBX: e65d7d48 ECX: EDX: e65d7d60 [ 751.052057] ESI: e67a7d00 EDI: e67a7cc0 EBP: e802ce48 ESP: e802ce3c [ 751.052057] DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068 [ 751.052057] Process evolution (pid: 8743, ti=e802c000 task=f3c8ce00 task.ti=e802c000) [ 751.052057] Stack: e65d7d48 f4c191f8 e802ce60 c01e2fa4 e67a7cc0 f4c191f8 e65d7d48 [ 751.052057]e660c280 e802ce80 c01e30c3 8180 e67a7cc0 c03b4a00 e660c280 [ 751.052057]8180 e802cea0 c0197964 e802cf24 c03b4a00 e67a7cc0 e660c280 e802cf24 [ 751.052057] Call Trace: [ 751.052057] [c01e2fa4] ? ext3_add_nondir+0x34/0x60 [ 751.052057] [c01e30c3] ? ext3_create+0xf3/0x100 [ 751.052057] [c0197964] ? vfs_create+0x74/0x100 [ 751.052057] [c0197c8f] ? open_namei_create+0x4f/0xa0 [ 751.052057] [c01981f3] ? open_namei+0x513/0x560 [ 751.052057] [c018db2c] ? do_filp_open+0x2c/0x60 [ 751.052057] [c018dd29] ? get_unused_fd_flags+0x39/0xd0 [ 751.052057] [c018dec4] ? do_sys_open+0x54/0xe0 [ 751.052057] [c018df6c] ? sys_open+0x1c/0x20 [ 751.052057] [c0104e2c] ? sysenter_past_esp+0x6d/0xa5 [ 751.052057] [c039] ? quirk_vt8235_acpi+0x90/0xa0 [ 751.052057] === [ 751.052057] Code: 27 00 00 00 00 55 89 e5 57 89 c7 56 8d 70 40 53 89 d3 39 70 40 75 37 b8 40 15 4e c0 e8 14 d1 1f 00 85 db [ 751.052057] EIP: [c01a0636] d_instantiate+0x26/0x50 SS:ESP 0068:e802ce3c [ 751.052103] ---[ end trace 514c1de750400319 ]--- -- Dave - Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://ad.doubleclick.net/clk;164216239;13503038;w?http://sf.net/marketplace ___ kvm-devel mailing list kvm-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/kvm-devel
