Same stack trace comes up when i attempted tp "cp" files from NFS folder (at Dom0) mounted at DomU ( 2.6.37-rc1-git9 kernel ) root@boris-HVM-domU:~# mount 192.168.1.6:/home/boris /mnt/tmp root@boris-HVM-domU:~# ls -l /mnt/tmp total 140300 drwxr-xr-x 2 boris boris 4096 2010-10-14 18:29 Desktop drwxr-xr-x 2 boris boris 4096 2010-10-14 18:29 Documents drwxr-xr-x 2 boris boris 4096 2010-10-14 18:29 Downloads -rw-r--r-- 1 boris boris 179 2010-10-14 18:06 examples.desktop -rw-r--r-- 1 root root 70277083 2010-11-12 21:40 linux-2.6.36.tar.bz2 -rw-r--r-- 1 root root 73335884 2010-11-12 21:42 linux-2.6.37-rc1.tar.bz2 drwxr-xr-x 2 boris boris 4096 2010-10-14 18:29 Music drwxr-xr-x 2 boris boris 4096 2010-10-14 18:29 Pictures drwxr-xr-x 2 boris boris 4096 2010-10-14 18:29 Public drwxr-xr-x 2 root root 4096 2010-11-05 15:12 solaris drwxr-xr-x 2 boris boris 4096 2010-10-14 18:29 Templates drwxr-xr-x 2 root root 4096 2010-11-13 11:19 ubuntu drwxr-xr-x 2 boris boris 4096 2010-10-14 18:29 Videos root@boris-HVM-domU:~# cp /mnt/tmp/linux-2.6.36.tar.bz2 . root@boris-HVM-domU:~# cp /mnt/tmp/linux-2.6.37-rc1.tar.bz2 . BUG: unable to handle kernel paging request at ffff880079b96cc0 IP: [] do_wp_page+0x597/0x6fa PGD 1a04067 PUD 41d5067 PMD 43a3067 PTE 8010000079b96065 Oops: 0003 [#1] SMP last sysfs file: /sys/devices/virtual/bdi/0:22/uevent CPU 0 Modules linked in: parport_pc ppdev ipv6 lp parport Pid: 3509, comm: bash Not tainted 2.6.37-rc1-git9 #1 / RIP: e030:[] [] do_wp_page+0x597/0x6fa RSP: e02b:ffff88007a305cd8 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffffea0001a0bcd0 RCX: 0000000000000001 RDX: 8000000136d77065 RSI: ffffffff81c47050 RDI: ffff880078adf040 RBP: ffff88007a305d68 R08: 0000000000000100 R09: 0000000000000041 R10: ffff8800798869c0 R11: ffff880078adf040 R12: ffffea0001a1ada8 R13: ffff880079b96cc0 R14: ffff880078adf040 R15: ffff88007a3c8700 FS: 00007f3a44186700(0000) GS:ffff88007ffbd000(0000) knlGS:0000000000000000 CS: e033 DS: 0000 ES: 0000 CR0: 000000008005003b CR2: ffff880079b96cc0 CR3: 00000000798b8000 CR4: 0000000000002660 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Process bash (pid: 3509, threadinfo ffff88007a304000, task ffff880078f66680) Stack: ffff88007a305cf8 ffffffff81007c31 ffffea0001aa08e0 0000000000000000 01ff88007a305d48 ffffea0001aa08e0 8000000136d77067 00007f3a441989a8 00007f3a441869d0 ffff88007a3c8700 ffff88007988d100 ffff880078adf040 Call Trace: [] ? __spin_time_accum+0x21/0x37 [] handle_mm_fault+0x9ba/0xa0e [] do_page_fault+0x387/0x3a9 [] ? xen_restore_fl_direct_end+0x0/0x1 [] ? xen_mc_flush+0x1cd/0x1f2 [] ? xen_clts+0x33/0x59 [] ? xen_spin_unlock+0x11/0x30 [] ? finish_task_switch+0x4f/0xc5 [] ? __might_sleep+0x23/0xea [] page_fault+0x25/0x30 Code: 48 c1 e7 0c 48 09 c7 ff 14 25 e8 27 a1 81 48 89 c2 48 83 c8 42 49 8b 3f 48 83 ca 40 41 f6 47 30 02 48 0f 44 c2 48 89 45 a0 31 c0 <49> 87 45 00 48 8b 75 a8 4c 89 ea 0f 1f 80 00 00 00 00 48 8b 75 RIP [] do_wp_page+0x597/0x6fa RSP CR2: ffff880079b96cc0 ---[ end trace a83a1add1cfb7333 ]--- --- On Fri, 11/12/10, Boris Derzhavets wrote: From: Boris Derzhavets Subject: Re: [Xen-devel] Re: 2.6.37-rc1 mainline domU - BUG: unable to handle kernel paging request To: "Bruce Edge" Cc: "Jeremy Fitzhardinge" , xen-devel@lists.xensource.com, "Konrad Rzeszutek Wilk" Date: Friday, November 12, 2010, 11:06 AM Bruce, I just tried 2.6.36 + patch-2.6.36-git13 via patch-2.6.36-git13.bz2 ( i picked it up from MY's first kernel-2.6.37.fc15.rc0.git13.src.rpm ). Kernel 2.6.36-git13 already has a BUG . So , problem is inside 11 MB patch-2.6.36-git13.bz2 . Might be it gives 37-rc1, i am not sure. If you want , i can try to send it to you. Boris. P.S. Bisecting 36 - 37-rc1 is too much anyway. --- On Fri, 11/12/10, Bruce Edge wrote: From: Bruce Edge Subject: Re: [Xen-devel] Re: 2.6.37-rc1 mainline domU - BUG: unable to handle kernel paging request To: "Boris Derzhavets" Cc: "Jeremy Fitzhardinge" , xen-devel@lists.xensource.com, "Konrad Rzeszutek Wilk" Date: Friday, November 12, 2010, 9:40 AM The git bisecting is slow going. I've never tried that before and I'm a git rookie. I picked 2.6.36 - 2.6.37-rc1 as the bisect range and my first 2 bisects all panic at boot so I'm obviously doing something wrong. I'll RTFM a bit more and keep at it. -Bruce On Thu, Nov 11, 2010 at 8:53 AM, Boris Derzhavets wrote: Ubuntu's 10.10 2.6.35-22-generic (or server) works fine for PV DomUs sharing same image device. I never tested vanilla 2.6.35 (36) itself for PV DomU support. Boris. --- On Thu, 11/11/10, Konrad Rzeszutek Wilk wrote: From: Konrad Rzeszutek Wilk Subject: Re: [Xen-devel] Re: 2.6.37-rc1 mainline domU - BUG: unable to handle kernel paging request To: "Boris Derzhavets" Cc: "Jeremy Fitzhardinge" , xen-devel@lists.xensource.com, "Bruce Edge" Date: Thursday, November 11, 2010, 11:46 AM On Thu, Nov 11, 2010 at 08:29:38AM -0800, Boris Derzhavets wrote: > > Boris, what version of Linux kernel worked for you as PV DomU? 2.6.36? 2.6.35? > > Konrad, > > The version is 2.6.37-rc1, been built from upstream source. I know that. I was asking what version worked for you in the past. As in, did you do the same tests with older kernels (2.6.36 for example?) _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel -----Inline Attachment Follows----- _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel -----Inline Attachment Follows----- _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel