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<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Hi all,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>The two nodes were deadlocked in this <span class=SpellE>WFBitMaps</span>
state.<span style='mso-spacerun:yes'> </span>I proceeded to try to
recover with <span class=SpellE><span class=GramE>drbdadm</span></span><span
class=GramE>(</span>) that would hang.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>I proceeded to reboot the nodes and I got an <span
class=SpellE>Ooops</span> in one of the nodes:<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=1 color=black face=Tahoma><span style='font-size:
9.0pt;font-family:Tahoma;color:black'>Oops: 0000 [#1]<br>
CPU: 0<br>
EIP is at bd_release+0x9/0x30<br>
<span class=SpellE><span class=GramE>eax</span></span>: f12cbe44 <span
class=SpellE>ebx</span>: 00000001 <span class=SpellE>ecx</span>:
ec78ac80 <span class=SpellE>edx</span>: 00000000<br>
<span class=SpellE><span class=GramE>esi</span></span>: eebd7400 <span
class=SpellE>edi</span>: 00000000 <span class=SpellE>ebp</span>:
efc6be50 <span class=SpellE>esp</span>: efc6be50<br>
<span class=SpellE><span class=GramE>ds</span></span>: 007b <span
class=SpellE>es</span>: 007b <span class=SpellE>ss</span>: 0069<br>
Process cqueue/0 (<span class=SpellE><span class=GramE>pid</span></span>: 776, <span
class=SpellE>threadinfo</span>=efc6a000 task=efc06570)<br>
Stack: <0>efc6bec4 f12c2428 ec78ac80 00000000 00000001 00000002 00000000
00000001<br>
00000000 00000001 00000004 00000000 <span
class=SpellE>00000000</span> 00000001 000000d0 ebd59d80<br>
00000000 efc6beac c02e03c8 00000000 <span
class=SpellE>00000000</span> 240bc3e4 00000000 efc6a000<br>
Call Trace:<br>
[<c010522a>] show_stack_log_lvl+0xaa/0xe0<br>
[<c010543e>] show_registers+0x18e/0x210<br>
[<c0105639>] die+0xd9/0x180<br>
[<c011326c>] do_page_fault+0x3cc/0x6ce<br>
[<c0104e3b>] error_code+0x2b/0x30<br>
[<f12c2428>] drbd_set_role+0x178/0x4d0 [<span class=SpellE>drbd</span>]<br>
[<f12c27ec>] drbd_nl_primary+0x6c/0x80 [<span class=SpellE>drbd</span>]<br>
[<f12c4ff5>] drbd_connector_callback+0xb5/0x1d0 [<span class=SpellE>drbd</span>]<br>
[<c026f3f3>] cn_queue_wrapper+0x13/0x40<br>
[<c012a408>] run_workqueue+0x88/0x120<br>
[<c012a5e8>] worker_thread+0x148/0x170<br>
[<c012dde7>] kthread+0xa7/0xf0<br>
[<c0102d7d>] kernel_thread_helper+0x5/0x18<br>
Code: 00 <span class=SpellE>00</span> 8b 42 3c ff 40 38 c7 40 34 a0 1f 16 c0 89
5a 34 ff 42 38 5b 89 c8 5d c3 90 8d b4 26 00 <span class=SpellE>00</span> <span
class=SpellE>00</span> <span class=SpellE>00</span> 55 89 e5 8b 4d 08 8b 51 3c
<8b> 42 38 48 89 42 38 85 c0 75<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=1 color=black face=Tahoma><span style='font-size:
9.0pt;font-family:Tahoma;color:black'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=1 color=black face=Tahoma><span style='font-size:
9.0pt;font-family:Tahoma;color:black'>This seems to imply that </span></font><span
class=SpellE><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'>mdev</span></font></span><font size=2
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'>-><span
class=SpellE>this_bdev</span> is pointing to an invalid location. <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
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