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Re: [Xen-devel] Re: Panic on boot on Sun Blade 6270

To: Pasi Kärkkäinen <pasik@xxxxxx>
Subject: Re: [Xen-devel] Re: Panic on boot on Sun Blade 6270
From: Dan Gora <dan.gora@xxxxxxxxx>
Date: Fri, 12 Mar 2010 14:37:09 -0300
Cc: "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>, "Jiang, Yunhong" <yunhong.jiang@xxxxxxxxx>, Keir Fraser <keir.fraser@xxxxxxxxxxxxx>
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On Fri, Mar 12, 2010 at 1:44 PM, Pasi Kärkkäinen <pasik@xxxxxx> wrote:

>> Also, is it expected that
>> the default .hg tree xen will *just work* on a SLES distro by running
>> install.sh or do you need a bunch of SuSE specific patches?
>>
>
> The default hg tree should work.

Thanks for the tips Pasi.. I guess I did pretty much that, but I just
did a 'make dist' and built everything including the 2.6.18 kernel, I
moved everything to the test machine and ran 'sh ./install.sh' and
added a grub line to boot the new xen:

title Xen-3.4.3-rc1.dan -- SUSE Linux Enterprise Server 11 -
2.6.27.19-5 (xen).dan
   root (hd0,0)
   kernel /xen-3.4.3-rc4-pre.gz crashkernel=128M@16M iommu=1
loglvl=all guest_loglvl=all console=vga,com1 com1=auto
   module /vmlinuz-2.6.27.19-5-xen.dan root=/dev/dm-5
resume=/dev/dm-2 splash=silent showopts console=ttyS0,115200 quiet
   module /initrd-2.6.27.19-5-xen.dan

so it should use the new hypervisor (xen-3.4.3-rc4-pre.gz) but the
original SLES 11 kernel /vmlinuz-2.6.27.19-5-xen.dan ( the stock
kernel with a couple of printks thrown in).

This boots to the kernel, but then it locks up the machine when it
tries to bring the networking up:

Mounting local file systems...
/proc on /proc type proc (rw)
sysfs on /sys type sysfs (rw)
debugfs on /sys/kernel/debug type debugfs (rw)
udev on /dev type tmpfs (rw)
devpts on /dev/pts type devpts (rw,mode=0620,gid=5)
/dev/mapper/ddf1_disk1_part1 on /boot type ext2 (rw,acl,user_xattr)
/dev/mapper/ddf1_disk1_part3 on /temp type ext3 (rw,acl,user_xattr)  done
Setting current sysctl status from /etc/sysctl.conf                  done
Enabling syn flood protection                                        done
Disabling IP forwarding                                              done
                                                                     done
Loading fuse module                                                  done
Mounting fuse control filesystem                                     done
Activating remaining swap-devices in /etc/fstab...                   done
Creating /var/log/boot.msg                                           done
Setting up linker cache (/etc/ld.so.cache) using ldconfig            done
ATTENTION: You have modified /etc/resolv.conf.  Leaving it untouched...
You can find my version in /etc/resolv.conf.netconfig ...
ATTENTION: You have modified /etc/yp.conf.  Leaving it untouched...
You can find my version in /etc/yp.conf.netconfig ...
Setting up hostname 'sunblade1'                                      done
Setting up NIS domainname 'adax.co.uk'                               done
Setting up loopback interface     lo
    lo        IP address: 127.0.0.1/8
              IP address: 127.0.0.2/8
Bridge firewalling registered


After about 5 minutes of sitting there it crashed:

BUG: unable to handle kernel NULL pointer dereference at 0000000000000008
IP: [<ffffffff8020e9cb>] profile_pc+0x30/0x3d
PGD 0
Oops: 0000 [1] SMP
last sysfs file: /sys/devices/pci0000:00/0000:00:1e.0/0000:20:05.0/class
CPU 0
Modules linked in: bridge(N) stp(N) fuse(N) ext2(N) loop(N) rtc_cmos(N) i2c_i80)
Supported: No
Pid: 92, comm: kswapd0 Tainted: G          2.6.27.19-5-xen.dan #5
RIP: e030:[<ffffffff8020e9cb>]  [<ffffffff8020e9cb>] profile_pc+0x30/0x3d
RSP: e02b:ffffffff80783db8  EFLAGS: 00010002
RAX: 0000000000000000 RBX: ffffffff8049077c RCX: ffffffff8067e320
RDX: ffff880081fa5000 RSI: 0000000000000400 RDI: ffffffff8049077c
RBP: ffffffff80783dc8 R08: 0000000000000c31 R09: ffff8803d8608878
R10: ffffffff80783d38 R11: 000000000000000c R12: ffff8803d860b838
R13: ffffffff80774020 R14: 00000000006187a6 R15: ffff880002719000
FS:  00007fde48ab66f0(0000) GS:ffffffff80785080(0000) knlGS:0000000000000000
CS:  e033 DS: 0000 ES: 0000
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Process kswapd0 (pid: 92, threadinfo ffff8803d860a000, task ffff8803d8608840)
Stack:  ffff8803d860b838 0000000000000001 ffffffff80783de8 ffffffff8024da1a
 0000000000000000 0000000000000020 ffffffff80783e98 ffffffff8020e987
 ffffffff80490942 ffffffff806b7108 ffffffff807e9700 ffffffff80774000
Call Trace:
 [<ffffffff8024da1a>] profile_tick+0x5f/0x7d
 [<ffffffff8020e987>] timer_interrupt+0x436/0x44a
 [<ffffffff80270594>] handle_IRQ_event+0x50/0x9c
 [<ffffffff80271757>] handle_percpu_irq+0x45/0x73
 [<ffffffff8020d8e3>] do_IRQ+0x4a/0x92
 [<ffffffff803dbce8>] evtchn_do_upcall+0x1a9/0x275
 [<ffffffff8020bcae>] do_hypervisor_callback+0x1e/0x30
 [<ffffffff8049077c>] _read_unlock_irqrestore+0x58/0x59
DWARF2 unwinder stuck at _read_unlock_irqrestore+0x58/0x59

Leftover inexact backtrace:

 [<ffffffffa012c8a7>] ? dm_get_table+0x35/0x3d [dm_mod]
 [<ffffffffa012ca10>] ? __split_bio+0x1e/0x47f [dm_mod]
 [<ffffffff802837ac>] ? __set_page_dirty_nobuffers+0x12/0x18d
 [<ffffffff802a691d>] ? __mem_cgroup_uncharge_common+0x10/0x163
 [<ffffffff802896ae>] ? __dec_zone_state+0x9/0x77
 [<ffffffff80490942>] ? _spin_lock_irq+0xc/0x71
 [<ffffffff804902f4>] ? __down_read+0x1a/0x120
 [<ffffffff8027f2ae>] ? mempool_alloc_slab+0x16/0x18
 [<ffffffffa012d056>] ? dm_request+0x13d/0x15f [dm_mod]
 [<ffffffff8033d1c0>] ? generic_make_request+0x39c/0x3df
 [<ffffffff802d282a>] ? bvec_alloc_bs+0x86/0xad
 [<ffffffff802d2780>] ? bio_init+0xd/0x31
 [<ffffffff802d28a1>] ? bio_alloc_bioset+0x50/0x97
 [<ffffffff804909b9>] ? _spin_lock_irqsave+0x12/0x96
 [<ffffffff8033d2ce>] ? submit_bio+0xcb/0xd4
 [<ffffffff8029c3ba>] ? swap_writepage+0xf6/0x103
 [<ffffffff80287748>] ? shrink_page_list+0x37b/0x5f3
 [<ffffffff8021d359>] ? ptep_clear_flush_young+0x7c/0x8b
 [<ffffffff80286829>] ? __isolate_lru_page+0x9/0x62
 [<ffffffff802869e8>] ? isolate_lru_pages+0x166/0x210
 [<ffffffff80287b90>] ? shrink_inactive_list+0x1d0/0x51d
 [<ffffffff80287fe8>] ? shrink_zone+0x10b/0x12e
 [<ffffffff802885f1>] ? kswapd+0x3f3/0x583
 [<ffffffff80286a92>] ? isolate_pages_global+0x0/0x39
 [<ffffffff8024860a>] ? autoremove_wake_function+0x0/0x3d
 [<ffffffff802881fe>] ? kswapd+0x0/0x583
 [<ffffffff802480bf>] ? kthread+0x4e/0x7b
 [<ffffffff8020bef9>] ? child_rip+0xa/0x11
 [<ffffffff80248071>] ? kthread+0x0/0x7b
 [<ffffffff8020beef>] ? child_rip+0x0/0x11


Code: 54 53 e8 89 ca ff ff f6 87 88 00 00 00 03 48 8b 9f 80 00 00 00 49 89 fc 7
RIP  [<ffffffff8020e9cb>] profile_pc+0x30/0x3d
 RSP <ffffffff80783db8>
CR2: 0000000000000008
---[ end trace a2b3d37002a3cae5 ]---
Kernel panic - not syncing: Aiee, killing interrupt handler!
------------[ cut here ]------------
WARNING: at kernel/smp.c:331 smp_call_function_mask+0x5a/0x1e1()
Modules linked in: bridge(N) stp(N) fuse(N) ext2(N) loop(N) rtc_cmos(N) i2c_i80)


Is there some difference in the network configuration or something
that could cause this?

thanks
dan

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