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Description :
linux-2.6.32-s390-qdio_input_error.patch
Description: qdio: reset error states immediately
Symptom: Connection stall on OSA cards.
Problem: The qdio hardware may surpress further interrupts as long as a
SBAL is in the error state. That can lead to unnotified data in
the SBALs following the error state.
Solution: Change the SBAL[s] in error state immediately to another program
owned state so interrupts are again received for further traffic
on the device.
Architecture details :
-----------------
Server architecture(s): System z
Server type: s390x
General component: kernel
Other components involved: No
Does the server have the latest GA firmware?
Yes.
Has the problem been shown to occur on more than one system?
Yes.
Is a tested patch available?
Yes.
If yes to the above, has it been approved upstream?
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=bffbbd2df4196a73ffdc16709866dd96eb66aad8
What is the latest official Red Hat build on which this bug has been seen?
RHEL6.1
The patch has been tested, fixes the problem, and is part of the upstream
kernel.
With best regards,
Hendrik
------- Comment From vahegde1.ibm.com 2011-05-20 02:44 EDT-------
Hello Red Hat,
Any update on this bug ?
Thanks
Vasant
Comment 4Hendrik Brueckner
2011-05-20 09:27:50 UTC
The patch has been posted to rhkernel by Hendrik Brueckner <brueckner>
Comment 5RHEL Program Management
2011-05-20 12:19:29 UTC
This request was evaluated by Red Hat Product Management for inclusion
in a Red Hat Enterprise Linux maintenance release. Product Management has
requested further review of this request by Red Hat Engineering, for potential
inclusion in a Red Hat Enterprise Linux Update release for currently deployed
products. This request is not yet committed for inclusion in an Update release.
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory, and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.
http://rhn.redhat.com/errata/RHSA-2011-1530.html
Description : linux-2.6.32-s390-qdio_input_error.patch Description: qdio: reset error states immediately Symptom: Connection stall on OSA cards. Problem: The qdio hardware may surpress further interrupts as long as a SBAL is in the error state. That can lead to unnotified data in the SBALs following the error state. Solution: Change the SBAL[s] in error state immediately to another program owned state so interrupts are again received for further traffic on the device. Architecture details : ----------------- Server architecture(s): System z Server type: s390x General component: kernel Other components involved: No Does the server have the latest GA firmware? Yes. Has the problem been shown to occur on more than one system? Yes. Is a tested patch available? Yes. If yes to the above, has it been approved upstream? http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=bffbbd2df4196a73ffdc16709866dd96eb66aad8 What is the latest official Red Hat build on which this bug has been seen? RHEL6.1 The patch has been tested, fixes the problem, and is part of the upstream kernel. With best regards, Hendrik