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Subject: RE: Cougar Blocker issues
Date: Fri, 11 Jan 2008 12:34:15 -0700
Message-ID: <BB375AF679D4A34E9CA8DFA650E2B04E079AC390@onstor-exch02.onstor.net>
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Thread-Topic: Cougar Blocker issues
Thread-Index: AchT7802RTXYHyBvRiSoxxZSCmvLQwAikx6wAAMr16AAADx8AAAASF6A
References: <BB375AF679D4A34E9CA8DFA650E2B04E079AC36C@onstor-exch02.onstor.net> <BB375AF679D4A34E9CA8DFA650E2B04E079AC382@onstor-exch02.onstor.net>
From: "Maxim Kozlovsky" <maxim.kozlovsky@onstor.com>
To: "Vikas Saini" <vikas.saini@onstor.com>,
	"Raj Kumar" <raj.kumar@onstor.com>,
	"Tim Gardner" <tim.gardner@onstor.com>,
	"dl-Cougar" <dl-Cougar@onstor.com>

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Ok here you go, 27286. Note that this reintroduces TED00021566
deadlock in spinlock_getlock - EVM sending queued I/O after receiving
scsi status

=20

________________________________

From: Vikas Saini=20
Sent: Friday, January 11, 2008 11:29 AM
To: Maxim Kozlovsky; Raj Kumar; Tim Gardner; dl-Cougar
Subject: RE: Cougar Blocker issues

=20

That is awesome Max... I was about to ask Larry to make a patch or
another build since we have fix for NCM and backup/restore issue. But I
will wait for your changes and then go for another sub.

=20

Thanks

Vikas

=20

=20

________________________________

From: Maxim Kozlovsky=20
Sent: Friday, January 11, 2008 11:21 AM
To: Raj Kumar; Vikas Saini; Tim Gardner; dl-Cougar
Subject: RE: Cougar Blocker issues

=20

I've encountered the ops drop to zero problem also while running spec.
It was introduced by a fix to another bug. I am going to undo that fix
for now. The io stop problem is much more probable than the spinlock
deadlock that we were trying to fix. We should make a patch to submittal
once I check this in.

=20

________________________________

From: Raj Kumar=20
Sent: Friday, January 11, 2008 9:50 AM
To: Vikas Saini; Tim Gardner; dl-Cougar
Subject: RE: Cougar Blocker issues

=20

Due to 21174 (PS drops ZERO after 5-6 minutes of traffic) and  21739
(drop in nfs throughput after mapping the same volumes cifs share), its
becoming next to impossible populating the file systems.=20

=20

________________________________

From: Vikas Saini=20
Sent: Thursday, January 10, 2008 5:18 PM
To: Tim Gardner; dl-Cougar
Subject: Cougar Blocker issues
Importance: High

=20

Hi All,

     Starting today, I will try to send a list of issues effecting QE
testing on a daily basis. Below is the list for today.

=20

Top issues are

=20

1)         defect 21782      COUGAR : FP Crash: CRITICAL: 385: FATAL
FILESYSTEM ERROR on volId 0x73f0000006a: internal error,
volWaitPendingIo failed

2)         defect 21739      COUGAR - huge drop in nfs throughput after
mapping the same volumes cifs share

3)         defect 21613      spm issue blocking NDMP testing.

4)         defect 21614      enabling 2nd SP port causes first SP port
to go down.

=20

=20

Thanks

Vikas

=20

=20


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<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>Ok here you go, 27286. Note that =
this
reintroduces TED00021566&nbsp;&nbsp;&nbsp;&nbsp; deadlock in =
spinlock_getlock -
EVM sending queued I/O after receiving scsi =
status<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'><o:p>&nbsp;</o:p></span></font></p>

<div style=3D'border:none;border-left:solid blue 1.5pt;padding:0in 0in =
0in 4.0pt'>

<div>

<div class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><font =
size=3D3
face=3D"Times New Roman"><span style=3D'font-size:12.0pt'>

<hr size=3D2 width=3D"100%" align=3Dcenter tabindex=3D-1>

</span></font></div>

<p class=3DMsoNormal><b><font size=3D2 face=3DTahoma><span =
style=3D'font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font =
size=3D2
face=3DTahoma><span style=3D'font-size:10.0pt;font-family:Tahoma'> Vikas =
Saini <br>
<b><span style=3D'font-weight:bold'>Sent:</span></b> Friday, January 11, =
2008
11:29 AM<br>
<b><span style=3D'font-weight:bold'>To:</span></b> Maxim Kozlovsky; Raj =
Kumar;
Tim Gardner; dl-Cougar<br>
<b><span style=3D'font-weight:bold'>Subject:</span></b> RE: Cougar =
Blocker issues</span></font><o:p></o:p></p>

</div>

<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
style=3D'font-size:
12.0pt'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>That is awesome Max&#8230; I was =
about to
ask Larry to make a patch or another build since we have fix for NCM and =
backup/restore
issue. But I will wait for your changes and then go for another =
sub.<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>Thanks<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>Vikas<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'><o:p>&nbsp;</o:p></span></font></p>

<div>

<div class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><font =
size=3D3
face=3D"Times New Roman"><span style=3D'font-size:12.0pt'>

<hr size=3D2 width=3D"100%" align=3Dcenter tabindex=3D-1>

</span></font></div>

<p class=3DMsoNormal><b><font size=3D2 face=3DTahoma><span =
style=3D'font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font =
size=3D2
face=3DTahoma><span style=3D'font-size:10.0pt;font-family:Tahoma'> Maxim =
Kozlovsky <br>
<b><span style=3D'font-weight:bold'>Sent:</span></b> Friday, January 11, =
2008
11:21 AM<br>
<b><span style=3D'font-weight:bold'>To:</span></b> Raj Kumar; Vikas =
Saini; Tim
Gardner; dl-Cougar<br>
<b><span style=3D'font-weight:bold'>Subject:</span></b> RE: Cougar =
Blocker issues</span></font><o:p></o:p></p>

</div>

<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
style=3D'font-size:
12.0pt'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>I&#8217;ve encountered the ops drop =
to
zero problem also while running spec. It was introduced by a fix to =
another
bug. I am going to undo that fix for now. The io stop problem is much =
more
probable than the spinlock deadlock that we were trying to fix. We =
should make
a patch to submittal once I check this in.<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'><o:p>&nbsp;</o:p></span></font></p>

<div style=3D'border:none;border-left:solid blue 1.5pt;padding:0in 0in =
0in 4.0pt'>

<div>

<div class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><font =
size=3D3
face=3D"Times New Roman"><span style=3D'font-size:12.0pt'>

<hr size=3D2 width=3D"100%" align=3Dcenter tabindex=3D-1>

</span></font></div>

<p class=3DMsoNormal><b><font size=3D2 face=3DTahoma><span =
style=3D'font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font =
size=3D2
face=3DTahoma><span style=3D'font-size:10.0pt;font-family:Tahoma'> Raj =
Kumar <br>
<b><span style=3D'font-weight:bold'>Sent:</span></b> Friday, January 11, =
2008
9:50 AM<br>
<b><span style=3D'font-weight:bold'>To:</span></b> Vikas Saini; Tim =
Gardner;
dl-Cougar<br>
<b><span style=3D'font-weight:bold'>Subject:</span></b> RE: Cougar =
Blocker issues</span></font><o:p></o:p></p>

</div>

<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
style=3D'font-size:
12.0pt'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
color=3Dnavy
face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;color:navy'>Due to
21174 (</span></font><font size=3D2 face=3D"Courier New"><span =
style=3D'font-size:
10.0pt;font-family:"Courier New"'>PS drops ZERO after 5-6 minutes of =
traffic)</span></font><font
size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;
color:navy'> and &nbsp;21739 (</span></font><font size=3D2 =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial'>drop in nfs throughput =
after mapping
the same volumes cifs share)<font color=3Dnavy><span =
style=3D'color:navy'>, its
becoming next to impossible populating the file systems. =
</span></font></span></font><font
size=3D2 face=3D"Courier New"><span =
style=3D'font-size:10.0pt;font-family:"Courier =
New"'><o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'><o:p>&nbsp;</o:p></span></font></p>

<div>

<div class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><font =
size=3D3
face=3D"Times New Roman"><span style=3D'font-size:12.0pt'>

<hr size=3D2 width=3D"100%" align=3Dcenter tabindex=3D-1>

</span></font></div>

<p class=3DMsoNormal><b><font size=3D2 face=3DTahoma><span =
style=3D'font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font =
size=3D2
face=3DTahoma><span style=3D'font-size:10.0pt;font-family:Tahoma'> =
<st1:PersonName
w:st=3D"on">Vikas Saini</st1:PersonName> <br>
<b><span style=3D'font-weight:bold'>Sent:</span></b> Thursday, January =
10, 2008
5:18 PM<br>
<b><span style=3D'font-weight:bold'>To:</span></b> <st1:PersonName =
w:st=3D"on">Tim
 Gardner</st1:PersonName>; dl-Cougar<br>
<b><span style=3D'font-weight:bold'>Subject:</span></b> Cougar Blocker =
issues<br>
<b><span style=3D'font-weight:bold'>Importance:</span></b> =
High</span></font><o:p></o:p></p>

</div>

<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
style=3D'font-size:
12.0pt'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>Hi All,<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>&nbsp;&nbsp;&nbsp;&nbsp; Starting today, I will try =
to send
a list of issues effecting QE testing on a daily basis. Below is the =
list for
today.<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>Top issues are<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial'>1)&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;
defect 21782 &nbsp;&nbsp;&nbsp;&nbsp; COUGAR : FP Crash: CRITICAL: 385: =
FATAL FILESYSTEM
ERROR on volId 0x73f0000006a: internal error, volWaitPendingIo =
failed<o:p></o:p></span></font></p>

<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial'>2)&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;
defect 21739&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; COUGAR - huge drop in nfs =
throughput
after mapping the same volumes cifs share<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>3) &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; defect
21613&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; spm issue blocking NDMP =
testing.<o:p></o:p></span></font></p>

<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial'>4)&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;
defect 21614&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; enabling 2nd SP port causes =
first SP
port to go down.<o:p></o:p></span></font></p>

<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial'><o:p>&nbsp;</o:p></span></fo=
nt></p>

<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial'><o:p>&nbsp;</o:p></span></fo=
nt></p>

<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial'>Thanks<o:p></o:p></span></fo=
nt></p>

<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial'>Vikas<o:p></o:p></span></fon=
t></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

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