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Soft lockups occur where tasks are looping in mmio_invalidate(). A possible deadlock or concurrency problem in the NPU DMA code in the kernel.

KCS Solution updated on 27 Apr 2022, 6:06 AM GMT - 1 -

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Red Hat Enterprise Linux for Power, little endian
RHEL for IBM Z got hung up after the list_add corruption

KCS Solution updated on 08 Apr 2022, 11:35 AM GMT - 0 -

0

Red Hat Enterprise Linux for IBM z Systems
Extended root LV using DASD disk and getting IO error after reboot

KCS Solution updated on 07 Apr 2022, 10:54 AM GMT - 0 -

0

Red Hat Enterprise Linux for IBM z Systems
Design Guidance for RHEL High Availability Clusters - IBM z/VM Instances as Cluster Members

Knowledge Article updated on 11 Mar 2022, 6:10 PM GMT - 5 -

0

Red Hat Enterprise Linux
RHEL High Availability cluster nodes on IBM z Systems experience STONITH-device timeouts around midnight on a nightly basis

KCS Solution updated on 11 Mar 2022, 3:33 PM GMT - 0 -

0

Red Hat Enterprise Linux
How can I configure power fencing for the IBM Power platform using an HMC in a RHEL High Availability cluster?

KCS Solution updated on 03 Mar 2022, 8:41 AM GMT - 1 -

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Red Hat Enterprise Linux
IBM zfcp luns unavailable with error "No handle is available"

KCS Solution updated on 03 Feb 2022, 9:25 PM GMT - 0 -

0

Red Hat Enterprise Linux
How to enter rescue mode on IBM Z Virtualization

KCS Solution updated on 24 Dec 2021, 4:44 PM GMT - 2 -

0

Red Hat Enterprise Linux for IBM z Systems
When Running OpenShift on IBM Z - Steps to Add DASD Storage Disk With Mulitpath

KCS Solution updated on 01 Dec 2021, 11:27 PM GMT - 1 -

0

Red Hat OpenShift Container Platform
ibmveth driver does not report 10Gb/s as advertised or supported link mode

KCS Solution updated on 16 Nov 2021, 6:26 AM GMT - 0 -

0

Red Hat Enterprise Linux
rhel8.4.z ppc64le crashes with a message "kernel BUG at arch/powerpc/lib/locks.c:34!"

KCS Solution updated on 12 Nov 2021, 6:59 AM GMT - 0 -

0

Red Hat Enterprise Linux
RHV: Allow modifying sanlock timeouts with respect to IBM SAN Volume Controller (SVC 2145) multi-site stretched storage.

KCS Solution updated on 07 Oct 2021, 9:02 PM GMT - 1 -

0

Red Hat Virtualization
Which versions of RHOCP support CNSA (IBM Spectrum storage) v5.1.0.3 or v5.1.1.1

KCS Solution updated on 17 Sep 2021, 6:38 PM GMT - 1 -

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Red Hat OpenShift Container Storage
"WARNING: CPU: 198 PID: 313357 at kernel/rcutree.c:2221" is logged and then Red Hat Enterprise Linux 7.8 kernel-3.10.0-1127.18.2.el7.ppc64le crashes in wq_worker_waking_up().

KCS Solution updated on 06 Sep 2021, 6:44 AM GMT - 0 -

0

Red Hat Enterprise Linux
How do I disable ASLR?

KCS Solution updated on 18 Aug 2021, 8:26 AM GMT - 1 -

0

Red Hat Enterprise Linux
"Setting the DASD online with discipline DIAG failed with rc=-95" for random devices at startup on RHEL on IBM Z

KCS Solution updated on 21 Jul 2021, 9:12 AM GMT - 0 -

0

Red Hat Enterprise Linux for IBM z Systems
Server hung and console unresponsive with GPFS errors

KCS Solution updated on 20 Jul 2021, 7:46 PM GMT - 0 -

0

Red Hat Enterprise Linux
Is IBM NetCool tool supported for monitoring?

KCS Solution updated on 30 Jun 2021, 5:54 PM GMT - 0 -

0

Red Hat OpenShift Container Platform
[RHOCP4.6] IBM Petitboot doesn't show disk in boot menu

KCS Solution updated on 28 Jun 2021, 7:49 AM GMT - 0 -

0

Red Hat OpenShift Container Platform
RHEL7.8.z ppc64le crashes with a message "kernel BUG at mm/usercopy.c:72!" without any 3rd party module being loaded

KCS Solution updated on 18 Jun 2021, 1:01 PM GMT - 0 -

0

Red Hat Enterprise Linux for Power, little endian
Where to find the z90crypt kernel module for Red Hat Enterprise Linux 8?

KCS Solution updated on 12 Jun 2021, 8:23 AM GMT - 0 -

0

Red Hat Enterprise Linux for IBM z Systems
s390x RHEL guest running on z/VM OS crashes in cgroup_iter_next(). A possible process data corruption caused by a possible slab use-after-free bug.

KCS Solution updated on 08 Jun 2021, 1:26 AM GMT - 0 -

0

Red Hat Enterprise Linux for IBM z Systems
Applications using DB2 database are facing slowness

KCS Solution updated on 26 May 2021, 11:17 AM GMT - 1 -

0

Red Hat Enterprise Linux
The fence_lpar list-status action shows the status of every LPAR as "UNKNOWN"

KCS Solution updated on 20 May 2021, 4:48 PM GMT - 1 -

0

Red Hat Enterprise Linux
Crash in list_del() called from dasd_alias_remove_device(), Linux on IBM Z

KCS Solution updated on 19 May 2021, 8:06 AM GMT - 0 -

0

Red Hat Enterprise Linux for IBM z Systems

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ibm

Soft lockups occur where tasks are looping in mmio_invalidate(). A possible deadlock or concurrency problem in the NPU DMA code in the kernel.

RHEL for IBM Z got hung up after the list_add corruption

Extended root LV using DASD disk and getting IO error after reboot

Design Guidance for RHEL High Availability Clusters - IBM z/VM Instances as Cluster Members

RHEL High Availability cluster nodes on IBM z Systems experience STONITH-device timeouts around midnight on a nightly basis

How can I configure power fencing for the IBM Power platform using an HMC in a RHEL High Availability cluster?

IBM zfcp luns unavailable with error "No handle is available"

How to enter rescue mode on IBM Z Virtualization

When Running OpenShift on IBM Z - Steps to Add DASD Storage Disk With Mulitpath

ibmveth driver does not report 10Gb/s as advertised or supported link mode

rhel8.4.z ppc64le crashes with a message "kernel BUG at arch/powerpc/lib/locks.c:34!"

RHV: Allow modifying sanlock timeouts with respect to IBM SAN Volume Controller (SVC 2145) multi-site stretched storage.

Which versions of RHOCP support CNSA (IBM Spectrum storage) v5.1.0.3 or v5.1.1.1

"WARNING: CPU: 198 PID: 313357 at kernel/rcutree.c:2221" is logged and then Red Hat Enterprise Linux 7.8 kernel-3.10.0-1127.18.2.el7.ppc64le crashes in wq_worker_waking_up().

How do I disable ASLR?

"Setting the DASD online with discipline DIAG failed with rc=-95" for random devices at startup on RHEL on IBM Z

Server hung and console unresponsive with GPFS errors

Is IBM NetCool tool supported for monitoring?

[RHOCP4.6] IBM Petitboot doesn't show disk in boot menu

RHEL7.8.z ppc64le crashes with a message "kernel BUG at mm/usercopy.c:72!" without any 3rd party module being loaded

Where to find the z90crypt kernel module for Red Hat Enterprise Linux 8?

s390x RHEL guest running on z/VM OS crashes in cgroup_iter_next(). A possible process data corruption caused by a possible slab use-after-free bug.

Applications using DB2 database are facing slowness

The fence_lpar list-status action shows the status of every LPAR as "UNKNOWN"

Crash in list_del() called from dasd_alias_remove_device(), Linux on IBM Z

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