From mboxrd@z Thu Jan  1 00:00:00 1970
From: Killian De Volder <killian.de.volder@scarlet.be>
Subject: Re: Crashing DomU
Date: Wed, 11 Nov 2009 09:08:57 +0100
Message-ID: <4AFA7119.4090108@scarlet.be>
References: <4AF9E19C.2060900@scarlet.be>
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After removing some things from my .config (of witch PCI support) xen 
now seems to boot.
> Good day,
>
> I'm experiencing a crashing domU kernel (during bootup)
> A person on IRC redirected me to the devel mailing list as it might 
> well be a bug.
>
> Below you can find the information about the crash, and versions used.
> (Used .config for domU is attached.)
>
> If you have any questions, feel free to ask.
>
> Greetings,
> Killian
>
> Xen Hypervision Version: 3.4.1
> DomU kernel: Vanilla-sources 2.6.31.6
> DomO kernel: Linux xen 2.6.18-xen-r12
> CPU: SMP x86_64 AMD Athlon(tm) 64 X2 Dual Core Processor 4400+
>
> Xen config file:
>
> kernel = "/boot/domU/net_vmlinuz"
> memory = 128
> name = "net"
> vcpus = 2
> vif = [ 'bridge=lan' ]
> disk = [
>        'phy:vg/net_root,xvda1,w',
>        'phy:vg/net_tmp,xvda2,w',
>        'phy:vg/net_var,xvda3,w',
>        'phy:vg/net_usr,xvda4,w',
>        'phy:vg/net_log,xvda5,w',
>        'phy:vg/net_swap,xvda6,w',
>        'phy:vg/net_proxy_cache,xvda7,w',
> ]
>
> root = "/dev/xvda1 ro"
> extra="console=hvc0 earlyprintk=xen"
> on_crash='preserve
>
> Crash report:
> rip: ffffffff811f22b0 write_console+0x43
> flags: 00001246 i z p
> rsp: ffffffff8142dc60
> rax: ffffffff81654000    rcx: 000000000000003d    rdx: 0000000000000008
> rbx: ffffffff8147d360    rsi: ffffffff813e21be    rdi: 0000000000000000
> rbp: 0000000000000008     r8: ffffffff815b5570     r9: ffffffff815358c5
> r10: 0000000000000010    r11: ffffffff815b5930    r12: ffffffff813e21be
> r13: 0000000000000008    r14: ffff880000000000    r15: 0000000000000000
> cs: e033     ss: e02b     ds: 0000     es: 0000
> fs: 0000 @ 0000000000000000
> gs: 0000 @ ffffffff814a0000/0000000000000000
> Code (instr addr ffffffff811f22b0)
> 00 48 83 f8 ff 75 25 80 3d 59 a3 2a 00 00 48 8b 05 a8 b0 33 00 <48> 8b 
> 40 48 75 11 44 89 fa 48 b9
>
>
> Stack:
> 000000000000003d ffffffff815b5930 0000000000000000 ffffffff811f22b0
> 000000010000e030 0000000000010046 ffffffff8142dca8 000000000000e02b
> ffffffff8117c89f 0000002100000008 ffffffff8147d360 000000000000003d
> 00000000000003a5 ffffffff8149be18 ffffffff815358c5 ffffffff8142dda8
>
> Call Trace:
>  [<ffffffff811f22b0>] write_console+0x43  <--
>  [<ffffffff811f22b0>] write_console+0x43
>  [<ffffffff8117c89f>] vsnprintf+0x7b3
>  [<ffffffff811f245b>] xenboot_write_console+0x45
>  [<ffffffff8104ec35>] __call_console_drivers+0x64
>  [<ffffffff8104f04a>] release_console_sem+0x10e
>  [<ffffffff8104f5bf>] vprintk+0x2e3
>  [<ffffffff810269f3>] __raw_callee_save_xen_restore_fl+0x11
>  [<ffffffff810269f3>] __raw_callee_save_xen_restore_fl+0x11
>  [<ffffffff81026a11>] __raw_callee_save_xen_irq_disable+0x11
>  [<ffffffff810269f3>] __raw_callee_save_xen_restore_fl+0x11
>  [<ffffffff813095b8>] printk+0x4e
>  [<ffffffff813095b8>] printk+0x4e
>  [<ffffffff814c2f36>] mark_bootmem_node+0xa8
>  [<ffffffff814b7135>] e820_register_active_regions+0x5a
>  [<ffffffff814b71a4>] early_res_to_bootmem+0x56
>  [<ffffffff814bf48b>] initmem_init+0x8c
>  [<ffffffff814b60b4>] setup_arch+0x508
>  [<ffffffff8130afe3>] _spin_unlock_irqrestore+0xc
>  [<ffffffff810681fb>] clockevents_register_notifier+0x39
>  [<ffffffff814b32ee>] start_kernel+0x7e
> ------------------------------------------------------------------------
>
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@lists.xensource.com
> http://lists.xensource.com/xen-devel
>   


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After removing some things from my .config (of witch PCI support) xen
now seems to boot.<br>
<blockquote cite=3D"mid:4AF9E19C.2060900@scarlet.be" type=3D"cite">Good
day,
  <br>
  <br>
I'm experiencing a crashing domU kernel (during bootup)
  <br>
A person on IRC redirected me to the devel mailing list as it might
well be a bug.
  <br>
  <br>
Below you can find the information about the crash, and versions used.
  <br>
(Used .config for domU is attached.)
  <br>
  <br>
If you have any questions, feel free to ask.
  <br>
  <br>
Greetings,
  <br>
Killian
  <br>
  <br>
Xen Hypervision Version: 3.4.1
  <br>
DomU kernel: Vanilla-sources 2.6.31.6
  <br>
DomO kernel: Linux xen 2.6.18-xen-r12
  <br>
CPU: SMP x86_64 AMD Athlon(tm) 64 X2 Dual Core Processor 4400+
  <br>
  <br>
Xen config file:
  <br>
  <br>
kernel =3D "/boot/domU/net_vmlinuz"
  <br>
memory =3D 128
  <br>
name =3D "net"
  <br>
vcpus =3D 2
  <br>
vif =3D [ 'bridge=3Dlan' ]
  <br>
disk =3D [
  <br>
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 'phy:vg/net_root,xvda1,w',
  <br>
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 'phy:vg/net_tmp,xvda2,w',
  <br>
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 'phy:vg/net_var,xvda3,w',
  <br>
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 'phy:vg/net_usr,xvda4,w',
  <br>
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 'phy:vg/net_log,xvda5,w',
  <br>
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 'phy:vg/net_swap,xvda6,w',
  <br>
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 'phy:vg/net_proxy_cache,xvda7,w',
  <br>
]
  <br>
  <br>
root =3D "/dev/xvda1 ro"
  <br>
extra=3D"console=3Dhvc0 earlyprintk=3Dxen"
  <br>
on_crash=3D'preserve
  <br>
  <br>
Crash report:
  <br>
rip: ffffffff811f22b0 write_console+0x43
  <br>
flags: 00001246 i z p
  <br>
rsp: ffffffff8142dc60
  <br>
rax: ffffffff81654000=C2=A0=C2=A0=C2=A0 rcx: 000000000000003d=C2=A0=C2=A0=
=C2=A0 rdx: 0000000000000008
  <br>
rbx: ffffffff8147d360=C2=A0=C2=A0=C2=A0 rsi: ffffffff813e21be=C2=A0=C2=A0=
=C2=A0 rdi: 0000000000000000
  <br>
rbp: 0000000000000008=C2=A0=C2=A0=C2=A0=C2=A0 r8: ffffffff815b5570=C2=A0=C2=
=A0=C2=A0=C2=A0 r9: ffffffff815358c5
  <br>
r10: 0000000000000010=C2=A0=C2=A0=C2=A0 r11: ffffffff815b5930=C2=A0=C2=A0=
=C2=A0 r12: ffffffff813e21be
  <br>
r13: 0000000000000008=C2=A0=C2=A0=C2=A0 r14: ffff880000000000=C2=A0=C2=A0=
=C2=A0 r15: 0000000000000000
  <br>
cs: e033=C2=A0=C2=A0=C2=A0=C2=A0 ss: e02b=C2=A0=C2=A0=C2=A0=C2=A0 ds: 000=
0=C2=A0=C2=A0=C2=A0=C2=A0 es: 0000
  <br>
fs: 0000 @ 0000000000000000
  <br>
gs: 0000 @ ffffffff814a0000/0000000000000000
  <br>
Code (instr addr ffffffff811f22b0)
  <br>
00 48 83 f8 ff 75 25 80 3d 59 a3 2a 00 00 48 8b 05 a8 b0 33 00
&lt;48&gt; 8b 40 48 75 11 44 89 fa 48 b9
  <br>
  <br>
  <br>
Stack:
  <br>
000000000000003d ffffffff815b5930 0000000000000000 ffffffff811f22b0
  <br>
000000010000e030 0000000000010046 ffffffff8142dca8 000000000000e02b
  <br>
ffffffff8117c89f 0000002100000008 ffffffff8147d360 000000000000003d
  <br>
00000000000003a5 ffffffff8149be18 ffffffff815358c5 ffffffff8142dda8
  <br>
  <br>
Call Trace:
  <br>
=C2=A0[&lt;ffffffff811f22b0&gt;] write_console+0x43=C2=A0 &lt;--
  <br>
=C2=A0[&lt;ffffffff811f22b0&gt;] write_console+0x43
  <br>
=C2=A0[&lt;ffffffff8117c89f&gt;] vsnprintf+0x7b3
  <br>
=C2=A0[&lt;ffffffff811f245b&gt;] xenboot_write_console+0x45
  <br>
=C2=A0[&lt;ffffffff8104ec35&gt;] __call_console_drivers+0x64
  <br>
=C2=A0[&lt;ffffffff8104f04a&gt;] release_console_sem+0x10e
  <br>
=C2=A0[&lt;ffffffff8104f5bf&gt;] vprintk+0x2e3
  <br>
=C2=A0[&lt;ffffffff810269f3&gt;] __raw_callee_save_xen_restore_fl+0x11
  <br>
=C2=A0[&lt;ffffffff810269f3&gt;] __raw_callee_save_xen_restore_fl+0x11
  <br>
=C2=A0[&lt;ffffffff81026a11&gt;] __raw_callee_save_xen_irq_disable+0x11
  <br>
=C2=A0[&lt;ffffffff810269f3&gt;] __raw_callee_save_xen_restore_fl+0x11
  <br>
=C2=A0[&lt;ffffffff813095b8&gt;] printk+0x4e
  <br>
=C2=A0[&lt;ffffffff813095b8&gt;] printk+0x4e
  <br>
=C2=A0[&lt;ffffffff814c2f36&gt;] mark_bootmem_node+0xa8
  <br>
=C2=A0[&lt;ffffffff814b7135&gt;] e820_register_active_regions+0x5a
  <br>
=C2=A0[&lt;ffffffff814b71a4&gt;] early_res_to_bootmem+0x56
  <br>
=C2=A0[&lt;ffffffff814bf48b&gt;] initmem_init+0x8c
  <br>
=C2=A0[&lt;ffffffff814b60b4&gt;] setup_arch+0x508
  <br>
=C2=A0[&lt;ffffffff8130afe3&gt;] _spin_unlock_irqrestore+0xc
  <br>
=C2=A0[&lt;ffffffff810681fb&gt;] clockevents_register_notifier+0x39
  <br>
=C2=A0[&lt;ffffffff814b32ee&gt;] start_kernel+0x7e
  <br>
  <pre wrap=3D"">
<hr size=3D"4" width=3D"90%">
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