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<p class=MsoNormal><b><span style='font-size:10.0pt;color:#1F497D'>Phil</span></b><span
style='font-size:10.0pt;color:#1F497D'>, just to let you know that a reboot of
the nodes and a fresh install of 8.4.2 has taken away the issue … cheers!<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;color:#1F497D'><o:p> </o:p></span></p>
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<p class=MsoNormal><span style='font-size:18.0pt;font-family:"Monotype Corsiva";
color:#1F497D'>Amit Shil</span><span style='font-size:18.0pt;font-family:"Monotype Corsiva";
color:#1F497D'><o:p></o:p></span></p>
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<p class=MsoNormal><span style='font-size:10.0pt;color:#1F497D'><o:p> </o:p></span></p>
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<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> Shil,A,Amit,DKR C <br>
<b>Sent:</b> 20 December 2012 19:27<br>
<b>To:</b> Philipp Reisner<br>
<b>Cc:</b> drbd-user@lists.linbit.com; Shil,A,Amit,DKR C<br>
<b>Subject:</b> RE: [DRBD-user] Kernel Panic - DRBD 8.4<o:p></o:p></span></p>
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<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoPlainText><b>Phil,<o:p></o:p></b></p>
<p class=MsoPlainText><o:p> </o:p></p>
<p class=MsoPlainText>Not too much of luck here, I downloaded the 8.4.2 sources
and compiled them (no issues) and recreated the module.. this time the kernel
panic happened on the node 1 while updating from node 1 to node 2.<o:p></o:p></p>
<p class=MsoPlainText><o:p> </o:p></p>
<p class=MsoPlainText>Not sure what’s wrong..!! I am gonna give it another try
from the scratch however not too hopeful as I did a clean install and
configuration this time too…<o:p></o:p></p>
<p class=MsoPlainText><o:p> </o:p></p>
<p class=MsoPlainText><o:p> </o:p></p>
<p class=MsoPlainText><o:p> </o:p></p>
<p class=MsoPlainText><b><u>On both nodes modinfo gives.<o:p></o:p></u></b></p>
<p class=MsoPlainText><o:p> </o:p></p>
<p class=MsoPlainText>]# modinfo drbd<o:p></o:p></p>
<p class=MsoPlainText>filename:
/lib/modules/2.6.32-71.el6.i686/updates/drbd.ko<o:p></o:p></p>
<p class=MsoPlainText>alias:
block-major-147-*<o:p></o:p></p>
<p class=MsoPlainText>license: GPL<o:p></o:p></p>
<p class=MsoPlainText>version: 8.4.2<o:p></o:p></p>
<p class=MsoPlainText>description: drbd - Distributed
Replicated Block Device v8.4.2<o:p></o:p></p>
<p class=MsoPlainText>author:
Philipp Reisner <phil@linbit.com>, Lars Ellenberg <lars@linbit.com><o:p></o:p></p>
<p class=MsoPlainText>srcversion: 02B37ADFC87F304A345F0A5<o:p></o:p></p>
<p class=MsoPlainText>depends:
libcrc32c<o:p></o:p></p>
<p class=MsoPlainText>vermagic:
2.6.32-71.el6.i686 SMP mod_unload modversions 686<o:p></o:p></p>
<p class=MsoPlainText>parm:
minor_count:Approximate number of drbd devices (1-255) (uint)<o:p></o:p></p>
<p class=MsoPlainText>parm:
disable_sendpage:bool<o:p></o:p></p>
<p class=MsoPlainText>parm:
allow_oos:DONT USE! (bool)<o:p></o:p></p>
<p class=MsoPlainText>parm:
proc_details:int<o:p></o:p></p>
<p class=MsoPlainText>parm:
enable_faults:int<o:p></o:p></p>
<p class=MsoPlainText>parm:
fault_rate:int<o:p></o:p></p>
<p class=MsoPlainText>parm:
fault_count:int<o:p></o:p></p>
<p class=MsoPlainText>parm:
fault_devs:int<o:p></o:p></p>
<p class=MsoPlainText>parm:
usermode_helper:string<o:p></o:p></p>
<p class=MsoPlainText><o:p> </o:p></p>
<p class=MsoPlainText><o:p> </o:p></p>
<p class=MsoPlainText><b><u>On both nodes – r0.res configuration<o:p></o:p></u></b></p>
<p class=MsoPlainText><o:p> </o:p></p>
<p class=MsoPlainText>cat r0.res<o:p></o:p></p>
<p class=MsoPlainText>resource r0 {<o:p></o:p></p>
<p class=MsoPlainText> on OracleLinuxVM1 {<o:p></o:p></p>
<p class=MsoPlainText> device /dev/drbd1;<o:p></o:p></p>
<p class=MsoPlainText> disk
/dev/VG_DRBD/VG_DRBD_LV;<o:p></o:p></p>
<p class=MsoPlainText> address 192.169.25.2:7789;<o:p></o:p></p>
<p class=MsoPlainText> meta-disk
/dev/VG_DRBD/VG_DRBD_LV_Meta;<o:p></o:p></p>
<p class=MsoPlainText> <span lang=FR>}<o:p></o:p></span></p>
<p class=MsoPlainText><span lang=FR> on OracleLinuxVM2 {<o:p></o:p></span></p>
<p class=MsoPlainText><span lang=FR> device
/dev/drbd1;<o:p></o:p></span></p>
<p class=MsoPlainText><span lang=FR> </span>disk
/dev/VG_DRBD/VG_DRBD_LV;<o:p></o:p></p>
<p class=MsoPlainText> address 192.169.25.4:7789;<o:p></o:p></p>
<p class=MsoPlainText> meta-disk
/dev/VG_DRBD/VG_DRBD_LV_Meta;<o:p></o:p></p>
<p class=MsoPlainText> }<o:p></o:p></p>
<p class=MsoPlainText>}<o:p></o:p></p>
<p class=MsoPlainText><o:p> </o:p></p>
<p class=MsoPlainText><b><u>Node 1 logs before it died<o:p></o:p></u></b></p>
<p class=MsoPlainText><o:p> </o:p></p>
<p class=MsoPlainText>Dec 21 00:46:20 OracleLinuxVM1 kernel: block drbd1:
uuid_compare()=2 by rule 30<o:p></o:p></p>
<p class=MsoPlainText>Dec 21 00:46:20 OracleLinuxVM1 kernel: block drbd1:
Becoming sync source due to disk states.<o:p></o:p></p>
<p class=MsoPlainText>Dec 21 00:46:20 OracleLinuxVM1 kernel: block drbd1:
Writing the whole bitmap, full sync required after drbd_sync_handshake.<o:p></o:p></p>
<p class=MsoPlainText>Dec 21 00:46:20 OracleLinuxVM1 kernel: block drbd1:
bitmap WRITE of 8 pages took 7 jiffies<o:p></o:p></p>
<p class=MsoPlainText>Dec 21 00:46:20 OracleLinuxVM1 kernel: block drbd1: 1024
MB (262144 bits) marked out-of-sync by on disk bit-map.<o:p></o:p></p>
<p class=MsoPlainText><o:p> </o:p></p>
<p class=MsoPlainText><b><u>Corresponding Node 2 logs<o:p></o:p></u></b></p>
<p class=MsoPlainText><o:p> </o:p></p>
<p class=MsoPlainText>Dec 21 00:46:24 OracleLinuxVM2 kernel: block drbd1: max
BIO size = 4096<o:p></o:p></p>
<p class=MsoPlainText>Dec 21 00:46:24 OracleLinuxVM2 kernel: block drbd1:
drbd_bm_resize called with capacity == 2097152<o:p></o:p></p>
<p class=MsoPlainText>Dec 21 00:46:24 OracleLinuxVM2 kernel: block drbd1:
resync bitmap: bits=262144 words=8192 pages=8<o:p></o:p></p>
<p class=MsoPlainText>Dec 21 00:46:24 OracleLinuxVM2 kernel: block drbd1: size
= 1024 MB (1048576 KB)<o:p></o:p></p>
<p class=MsoPlainText>Dec 21 00:46:24 OracleLinuxVM2 kernel: block drbd1:
Writing the whole bitmap, size changed<o:p></o:p></p>
<p class=MsoPlainText>Dec 21 00:46:24 OracleLinuxVM2 kernel: block drbd1:
bitmap WRITE of 8 pages took 138 jiffies<o:p></o:p></p>
<p class=MsoPlainText>Dec 21 00:46:24 OracleLinuxVM2 kernel: block drbd1: 1024
MB (262144 bits) marked out-of-sync by on disk bit-map.<o:p></o:p></p>
<p class=MsoPlainText>Dec 21 00:46:24 OracleLinuxVM2 kernel: block drbd1:
bitmap READ of 8 pages took 1 jiffies<o:p></o:p></p>
<p class=MsoPlainText>Dec 21 00:46:24 OracleLinuxVM2 kernel: block drbd1:
recounting of set bits took additional 0 jiffies<o:p></o:p></p>
<p class=MsoPlainText>Dec 21 00:46:24 OracleLinuxVM2 kernel: block drbd1: 1024
MB (262112 bits) marked out-of-sync by on disk bit-map.<o:p></o:p></p>
<p class=MsoPlainText>Dec 21 00:46:24 OracleLinuxVM2 kernel: block drbd1: disk(
Attaching -> Inconsistent )<o:p></o:p></p>
<p class=MsoPlainText>Dec 21 00:46:24 OracleLinuxVM2 kernel: block drbd1:
attached to UUIDs
0000000000000004:0000000000000000:0000000000000000:0000000000000000<o:p></o:p></p>
<p class=MsoPlainText>Dec 21 00:46:24 OracleLinuxVM2 kernel: d-con r0: conn(
StandAlone -> Unconnected )<o:p></o:p></p>
<p class=MsoPlainText>Dec 21 00:46:24 OracleLinuxVM2 kernel: d-con r0: Starting
receiver thread (from drbd_w_r0 [4381])<o:p></o:p></p>
<p class=MsoPlainText>Dec 21 00:46:24 OracleLinuxVM2 kernel: d-con r0: receiver
(re)started<o:p></o:p></p>
<p class=MsoPlainText>Dec 21 00:46:24 OracleLinuxVM2 kernel: d-con r0: conn(
Unconnected -> WFConnection )<o:p></o:p></p>
<p class=MsoPlainText>Dec 21 00:46:24 OracleLinuxVM2 kernel: d-con r0:
Handshake successful: Agreed network protocol version 100<o:p></o:p></p>
<p class=MsoPlainText>Dec 21 00:46:24 OracleLinuxVM2 kernel: d-con r0: conn(
WFConnection -> WFReportParams )<o:p></o:p></p>
<p class=MsoPlainText>Dec 21 00:46:24 OracleLinuxVM2 kernel: d-con r0: Starting
asender thread (from drbd_r_r0 [4390])<o:p></o:p></p>
<p class=MsoPlainText>Dec 21 00:46:24 OracleLinuxVM2 kernel: block drbd1: max
BIO size = 1048576<o:p></o:p></p>
<p class=MsoPlainText>Dec 21 00:46:24 OracleLinuxVM2 kernel: block drbd1:
drbd_sync_handshake:<o:p></o:p></p>
<p class=MsoPlainText>Dec 21 00:46:24 OracleLinuxVM2 kernel: block drbd1: self
0000000000000004:0000000000000000:0000000000000000:0000000000000000 bits:262112
flags:0<o:p></o:p></p>
<p class=MsoPlainText>Dec 21 00:46:24 OracleLinuxVM2 kernel: block drbd1: peer
EBBAD8F6D3F6170B:0000000000000004:0000000000000000:0000000000000000 bits:262112
flags:2<o:p></o:p></p>
<p class=MsoPlainText>Dec 21 00:46:24 OracleLinuxVM2 kernel: block drbd1:
uuid_compare()=-2 by rule 20<o:p></o:p></p>
<p class=MsoPlainText>Dec 21 00:46:24 OracleLinuxVM2 kernel: block drbd1:
Becoming sync target due to disk states.<o:p></o:p></p>
<p class=MsoPlainText>Dec 21 00:46:24 OracleLinuxVM2 kernel: block drbd1:
Writing the whole bitmap, full sync required after drbd_sync_handshake.<o:p></o:p></p>
<p class=MsoPlainText>Dec 21 00:46:24 OracleLinuxVM2 kernel: block drbd1:
bitmap WRITE of 8 pages took 4 jiffies<o:p></o:p></p>
<p class=MsoPlainText>Dec 21 00:46:24 OracleLinuxVM2 kernel: block drbd1: 1024
MB (262144 bits) marked out-of-sync by on disk bit-map.<o:p></o:p></p>
<p class=MsoPlainText>Dec 21 00:46:24 OracleLinuxVM2 kernel: block drbd1: peer(
Unknown -> Primary ) conn( WFReportParams -> WFBitMapT ) pdsk( DUnknown
-> UpToDate )<o:p></o:p></p>
<p class=MsoPlainText>Dec 21 00:46:24 OracleLinuxVM2 kernel: block drbd1:
receive bitmap stats [Bytes(packets)]: plain 0(0), RLE 21(1), total 21;
compression: 100.0%<o:p></o:p></p>
<p class=MsoPlainText>Dec 21 00:46:24 OracleLinuxVM2 kernel: block drbd1: send
bitmap stats [Bytes(packets)]: plain 0(0), RLE 21(1), total 21; compression:
100.0%<o:p></o:p></p>
<p class=MsoPlainText>Dec 21 00:46:24 OracleLinuxVM2 kernel: block drbd1: conn(
WFBitMapT -> WFSyncUUID )<o:p></o:p></p>
<p class=MsoPlainText><o:p> </o:p></p>
<p class=MsoPlainText><o:p> </o:p></p>
<p class=MsoNormal><span style='font-size:18.0pt;font-family:"Monotype Corsiva";
color:#1F497D'>Amit Shil<o:p></o:p></span></p>
<p class=MsoPlainText><o:p> </o:p></p>
<p class=MsoPlainText>-----Original Message-----<br>
From: Philipp Reisner [mailto:philipp.reisner@linbit.com] <br>
Sent: 20 December 2012 09:48<br>
To: drbd-user@lists.linbit.com<br>
Cc: Shil,A,Amit,DKR C<br>
Subject: Re: [DRBD-user] Kernel Panic - DRBD 8.4<o:p></o:p></p>
<p class=MsoPlainText><o:p> </o:p></p>
<p class=MsoPlainText>Hi Amit,<o:p></o:p></p>
<p class=MsoPlainText><o:p> </o:p></p>
<p class=MsoPlainText>This is a know bug.<o:p></o:p></p>
<p class=MsoPlainText>http://git.drbd.org/gitweb.cgi?p=drbd-8.4.git;a=commit;h=04be124e812093c003e6a93da549ee7dda0cc443<o:p></o:p></p>
<p class=MsoPlainText>The fix was released with 8.4.2. <o:p></o:p></p>
<p class=MsoPlainText>Please use the latest minor release.<o:p></o:p></p>
<p class=MsoPlainText><o:p> </o:p></p>
<p class=MsoPlainText>Best,<o:p></o:p></p>
<p class=MsoPlainText> Phil<o:p></o:p></p>
<p class=MsoPlainText><o:p> </o:p></p>
<p class=MsoPlainText>> Hi All,<o:p></o:p></p>
<p class=MsoPlainText>> <o:p></o:p></p>
<p class=MsoPlainText>> I am new to DRBD and have been unable to run a full
setup at the moment. I<o:p></o:p></p>
<p class=MsoPlainText>> am getting a kernel panic whenever the auto sync
start from the Up2date<o:p></o:p></p>
<p class=MsoPlainText>> node (whenever I do resource up or drbd restart it
panics)...<o:p></o:p></p>
<p class=MsoPlainText>[...]<o:p></o:p></p>
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