Description of problem: RHEL5.1 IA32e xen will crash when boot two 32bit windows guests. Version-Release number of selected component (if applicable): How reproducible: 1. prapare two 32-bit Windows guest 2. create 2 32-bit window xp guest in parellel Actual results: Expected results: Additional info: Output of serial console: output of serial console (XEN) mtrr: type mismatch for d0000000,1000000 old: uncachable new: write- combining (XEN) mm.c:1345:d0 Bad L1 flags 800000 (XEN) mm.c:1345:d0 Bad L1 flags 800000 (XEN) mm.c:1345:d0 Bad L1 flags 800000 (XEN) mm.c:1345:d0 Bad L1 flags 800000 (XEN) mm.c:1345:d0 Bad L1 flags 800000 (XEN) mm.c:1345:d0 Bad L1 flags 800000 (XEN) mm.c:1345:d0 Bad L1 flags 800000 (XEN) mm.c:1345:d0 Bad L1 flags 800000 (XEN) mm.c:1345:d0 Bad L1 flags 800000 (XEN) mm.c:1345:d0 Bad L1 flags 800000 ----------- [cut here ] --------- [please bite here ] --------- Kernel BUG at mm/memory.c:2290 invalid opcode: 0000 [1] SMP last sysfs file: /block/loop0/range CPU 5 Modules linked in: xt_physdev loop tun nfs lockd fscache nfs_acl netloop netbk blktap blkbk ipt_MASQUERADE iptable_nat ip_nat xt_state ip_cond Pid: 5536, comm: qemu-dm Not tainted 2.6.18-37.el5xen #1 RIP: e030:[<ffffffff80208b30>] [<ffffffff80208b30>] __handle_mm_fault+0x379/0xf46 RSP: e02b:ffff8800c0369de8 EFLAGS: 00010202 RAX: ffffffff805147c0 RBX: 0000000000000130 RCX: 00003ffffffff000 RDX: 00000000c0098130 RSI: 0000000000000067 RDI: ffff8800ef5a5140 RBP: ffff8800ef5a5140 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000246 R12: 0000000000000000 R13: ffff8800c0098130 R14: 00002aaaac626000 R15: ffff8800b2cb5528 FS: 00002aaaaaad85a0(0000) GS:ffffffff80599280(0000) knlGS:0000000000000000 CS: e033 DS: 0000 ES: 0000 Process qemu-dm (pid: 5536, threadinfo ffff8800c0368000, task ffff880000dad100) Stack: 0000000000000001 0000000180501c28 ffff8800ef5a5140 ffff8800c030cb18 ffffffff8028028d 0000000300000000 ffffffff80501c28 0000000000000000 0000000000000001 0000000000000000 Call Trace: [<ffffffff8028028d>] __wake_up_common+0x3e/0x68 [<ffffffff802641db>] do_page_fault+0xe48/0x11dc [<ffffffff80261519>] __up_wakeup+0x35/0x67 [<ffffffff8025d823>] error_exit+0x0/0x6e Code: 0f 0b 68 ce 50 47 80 c2 f2 08 49 8b 87 90 00 00 00 48 c7 44 RIP [<ffffffff80208b30>] __handle_mm_fault+0x379/0xf46 RSP <ffff8800c0369de8> <0>Kernel panic - not syncing: Fatal exception (XEN) Domain 0 crashed: rebooting machine in 5 seconds.
Created attachment 161845 [details] hvm config file
How exactly was the guests started. Did you run a simple "xm create" in two different windows? I'm currently running two XP Guests as well as a 2003 Guest. How much memory did each guest have (the config states 256). I'm running each of mine with 512 (will start again with 256). So far, I haven't had a crash.
Could you also post the config for "both" the guests that were running.
The config of the two windows are basically the same. I just changed the domain name and disk images. I create the two windows guests, with the command: "xm cr config1;xm cr config2"
Bugzilla 249409 had the same symptom and a patch to fix it went into release -44. Could you retest with the latest and see if the problem goes away?
I have retested it on snap 6. The issue has already been fixed.
Thanks, will close this as a dup of that other bug, then. *** This bug has been marked as a duplicate of 249409 ***