New: [libata] (?) causing Hardlock in 2.6.30.4 during simultaneous read & write
http://bugzilla.kernel.org/show_bug.cgi?id=13982
Summary: [libata] (?) causing Hardlock in 2.6.30.4 during
simultaneous read & write
Product: IO/Storage
Version: 2.5
Kernel Version: 2.6.30.4
Platform: All
OS/Version: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: SCSI
AssignedTo: [email protected]
ReportedBy: [email protected]
Regression: No
Created an attachment (id=22713)
--> (http://bugzilla.kernel.org/attachment.cgi?id=22713)
kernel config
Hi.
HW: Server Board Intel STL2, 2x P3 @ 1GHz, 1GB ECC RAM
SW: self-compiled kernel 2.6.30.4 on Debian Lenny
Symptom: PC completely stops responding (ping, ALT+F2..., Numlock, CTRL-ALT-DEL, ALT-SysRq)
Traces: No Oops, nothing in syslog etc.
I think it's not HW failure, because it never happened when
* 2x dd if=/dev/zero bs=1M count=200000 | md5sum -b
* 2x dd if=/dev/zero of=test-x bs=1M count=200000
such tests take a long time on this HW (51min and 85min) and checksums always OK. Tested many times.
Anyway i'm usually able to invoke Hardlock in 2min. I use a script:
#!/bin/bash
dd if=/dev/zero bs=1M count=200000 | md5sum -b &
dd if=/dev/zero bs=1M count=200000 | md5sum -b &
cd /home/pik/a
md5sum -c office.md5 &
cd /home/pik/b
md5sum -c office.md5 &
So i run this stress script _and_ begin FTP write to the same HDD. Usually Hardlock itself, but if it does not Hardlock in 60sec i can help it with another dd (dd if=/dev/zero of=test1 bs=1M count=200000).
Also why should not be HW failure - No complains of EDAC and happens on different HW:
* PATA drive IC35L040AVVA07 on ServerWorks OSB4 (MOBO's chipset aka IB6566
South Bridge)
* SATA drives 2xWD5000AADS in md0 on Sil3114
* Network card: PCI-X, Intel 1Gbps 82543GC
* Network card: PCI Realtek RT8139
Today when doing last test for bugreport there was a trace, but the HardLock was not 100% same (as always ping stopped working, console switching did not work, no Numlock reaction, but Alt-SysRq worked). Hope its not misleading - see attachment.
Another prove(?), that this is not HW failure:
* never happens with Debian's 2.6.26-17lenny1 all_generic_ide=1 gcc4.1.3
* easy to trigger with 2.6.30.4 gcc4.3.2
...i know know different kernel version, kernel parameters and gcc, but HW error would occurred anyway.
config kernel, dmesg, lspci atached.
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[Bug 13982] [libata] (?) causing Hardlock in 2.6.30.4 during simultaneous read & write
http://bugzilla.kernel.org/show_bug.cgi?id=13982
--- Comment #1 from Pavel Vilim <[email protected]> 2009-08-14 08:28:52 --- Created an attachment (id=22714)
--> (http://bugzilla.kernel.org/attachment.cgi?id=22714)
dmesg
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[Bug 13982] [libata] (?) causing Hardlock in 2.6.30.4 during simultaneous read & write
In reply to [email protected]http://bugzilla.kernel.org/show_bug.cgi?id=13982
--- Comment #2 from Pavel Vilim <[email protected]> 2009-08-14 08:29:23 --- Created an attachment (id=22715)
--> (http://bugzilla.kernel.org/attachment.cgi?id=22715)
lspci -v
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[Bug 13982] [libata] (?) causing Hardlock in 2.6.30.4 during simultaneous read & write
In reply to [email protected]http://bugzilla.kernel.org/show_bug.cgi?id=13982
--- Comment #3 from Pavel Vilim <[email protected]> 2009-08-14 08:30:36 --- Created an attachment (id=22716)
--> (http://bugzilla.kernel.org/attachment.cgi?id=22716)
First trace during 5days of testing/restarting...
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[Bug 13982] [libata] (?) causing Hardlock in 2.6.30.4 during simultaneous read & write
In reply to [email protected]http://bugzilla.kernel.org/show_bug.cgi?id=13982
Roland Kletzing <[email protected]> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |[email protected]
--- Comment #4 from Roland Kletzing <[email protected]> 2009-08-15 16:48:29 --- this may be http://bugzilla.kernel.org/show_bug.cgi?id=13933
(someone mark it as duplicate then)
can you check if 2.6.29 works without problems ?
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[Bug 13982] [libata] (?) causing Hardlock in 2.6.30.4 during simultaneous read & write
In reply to [email protected]http://bugzilla.kernel.org/show_bug.cgi?id=13982
David Hill <[email protected]> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |[email protected]
--- Comment #5 from David Hill <[email protected]> 2009-08-15 17:45:39 --- Same network card as in bug 13219
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[Bug 13982] [libata] (?) causing Hardlock in 2.6.30.4 during simultaneous read & write
In reply to [email protected]http://bugzilla.kernel.org/show_bug.cgi?id=13982
--- Comment #6 from Roland Kletzing <[email protected]> 2009-08-15 18:01:07 --- is it possible to temporarly disable/remove the realtek nic ?
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[Bug 13982] [libata] (?) causing Hardlock in 2.6.30.4 during simultaneous read & write
In reply to [email protected]http://bugzilla.kernel.org/show_bug.cgi?id=13982
Rafael J. Wysocki <[email protected]> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
CC| |[email protected]
Resolution| |DUPLICATE--- Comment #7 from Rafael J. Wysocki <[email protected]> 2009-08-15 20:33:44 ---
*** This bug has been marked as a duplicate of bug 13933 ***
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