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How to capture vmcore of a OpenStack instance ?

KCS Solution updated on 27 Mar 2023, 6:08 AM GMT - 0 -

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Red Hat OpenStack Platform
RCU stall WARNING: at kernel/rcu/tree.c:1392 rcu_advance_cbs_nowake+0x51/0x60

KCS Solution updated on 23 Mar 2023, 12:46 PM GMT - 0 -

0

Red Hat Enterprise Linux
Deadlock happens between posix_cpu_timer_del() and run_posix_cpu_timers()

KCS Solution updated on 20 Mar 2023, 1:47 AM GMT - 0 -

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Red Hat Enterprise Linux for x86_64
RHEL 8: System has a number tasks hung waiting in the rq_qos_wait routine.

KCS Solution updated on 13 Mar 2023, 6:46 PM GMT - 0 -

0

Red Hat Enterprise Linux
System hang during rport deletion waiting on RCU sync

KCS Solution updated on 07 Mar 2023, 2:51 PM GMT - 0 -

0

Red Hat Enterprise Linux
System crash from double completion in qla2xxx driver following port flaps

KCS Solution updated on 07 Mar 2023, 2:25 PM GMT - 0 -

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Red Hat Enterprise Linux
System hang on stalled I/O with bad vring_virtqueue length

KCS Solution updated on 03 Mar 2023, 9:36 PM GMT - 0 -

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Red Hat Enterprise Linux
System crash due to hang with blocking RPC timer code on CPU

KCS Solution updated on 02 Mar 2023, 2:28 PM GMT - 0 -

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Red Hat Enterprise Linux
バックグラウンドでの i ノードの書き込みが原因で、タスク vmtoolsd が 120 秒以上ブロックされる

KCS Solution updated on 01 Mar 2023, 1:22 PM GMT - 0 -

0

Red Hat Enterprise Linux
システムがハングし、"WARNING: CPU: 3 PID: 598881 at fs/super.c:1674 __sb_start_write+0x2b9/0x300" が表示される

KCS Solution updated on 28 Feb 2023, 10:35 PM GMT - 0 -

0

Red Hat Enterprise Linux
kernel-3.10.0-862.3.2.el7 に更新した後、システムを起動できない

KCS Solution updated on 28 Feb 2023, 3:44 AM GMT - 0 -

0

Red Hat Enterprise Linux
xfs_dir_lookup() および xfs_da_read_buf() を介した大きな XFS ディレクトリーの読み取り中にシステムがハングする

KCS Solution updated on 22 Feb 2023, 8:54 AM GMT - 0 -

0

Red Hat Enterprise Linux
After creating mode 6 bonds in Red Hat Enterprise Linux 4, the bonded network interfaces may refuse to shutdown properly, causing system hangs when power cycling.

KCS Solution updated on 17 Feb 2023, 2:43 PM GMT - 2 -

0

Red Hat Enterprise Linux
Server hangs due to third party McAffe module "mfe_fileaccess"

KCS Solution updated on 15 Feb 2023, 2:51 AM GMT - 0 -

0

Red Hat Enterprise Linux
System crash due to use-after-free in NVMe-over-TCP request handling

KCS Solution updated on 06 Feb 2023, 8:41 PM GMT - 0 -

0

Red Hat Enterprise Linux
What information do I need to investigate in case of high load, I/O or memory consumption in RHEL?

KCS Solution updated on 04 Feb 2023, 10:11 AM GMT - 5 -

5

Red Hat Enterprise Linux
RHEL 8: システムには、rq_qos_wait ルーチンで待機しているハングしたタスクが多数あります。

KCS Solution updated on 03 Feb 2023, 8:32 AM GMT - 0 -

0

Red Hat Enterprise Linux
System crash due to tcm loopback driver causing double-start of SCSI command

KCS Solution updated on 01 Feb 2023, 5:03 PM GMT - 0 -

0

Red Hat Enterprise Linux
System crash in blk_mq_rq_timed_out() when dereferencing NULL request->q pointer

KCS Solution updated on 23 Jan 2023, 10:14 PM GMT - 0 -

0

Red Hat Enterprise Linux
System not responding and vmcore shows 'xagt' process

KCS Solution updated on 15 Jan 2023, 12:18 AM GMT - 0 -

0

Red Hat Enterprise Linux
System stall with timed out NVMe over TCP requests

KCS Solution updated on 10 Jan 2023, 7:32 PM GMT - 0 -

0

Red Hat Enterprise Linux
System crash "kernel BUG at drivers/scsi/vmw_pvscsi.c:338!"

KCS Solution updated on 09 Jan 2023, 3:03 AM GMT - 0 -

0

Red Hat Enterprise Linux
System crash in blk_mq_free_request() following NVMe controller reset due to NULL mq_hctx

KCS Solution updated on 06 Jan 2023, 5:11 PM GMT - 0 -

0

Red Hat Enterprise Linux
System crash due to use-after-free in NVMe request double completion

KCS Solution updated on 06 Jan 2023, 5:04 PM GMT - 0 -

0

Red Hat Enterprise Linux
System crash in dma_direct_unmap_sg() while having rport issues and using bnx2fc driver

KCS Solution updated on 06 Jan 2023, 1:36 PM GMT - 0 -

0

Red Hat Enterprise Linux

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hang

How to capture vmcore of a OpenStack instance ?

RCU stall WARNING: at kernel/rcu/tree.c:1392 rcu_advance_cbs_nowake+0x51/0x60

Deadlock happens between posix_cpu_timer_del() and run_posix_cpu_timers()

RHEL 8: System has a number tasks hung waiting in the rq_qos_wait routine.

System hang during rport deletion waiting on RCU sync

System crash from double completion in qla2xxx driver following port flaps

System hang on stalled I/O with bad vring_virtqueue length

System crash due to hang with blocking RPC timer code on CPU

バックグラウンドでの i ノードの書き込みが原因で、タスク vmtoolsd が 120 秒以上ブロックされる

システムがハングし、"WARNING: CPU: 3 PID: 598881 at fs/super.c:1674 __sb_start_write+0x2b9/0x300" が表示される

kernel-3.10.0-862.3.2.el7 に更新した後、システムを起動できない

xfs_dir_lookup() および xfs_da_read_buf() を介した大きな XFS ディレクトリーの読み取り中にシステムがハングする

After creating mode 6 bonds in Red Hat Enterprise Linux 4, the bonded network interfaces may refuse to shutdown properly, causing system hangs when power cycling.

Server hangs due to third party McAffe module "mfe_fileaccess"

System crash due to use-after-free in NVMe-over-TCP request handling

What information do I need to investigate in case of high load, I/O or memory consumption in RHEL?

RHEL 8: システムには、rq_qos_wait ルーチンで待機しているハングしたタスクが多数あります。

System crash due to tcm loopback driver causing double-start of SCSI command

System crash in blk_mq_rq_timed_out() when dereferencing NULL request->q pointer

System not responding and vmcore shows 'xagt' process

System stall with timed out NVMe over TCP requests

System crash "kernel BUG at drivers/scsi/vmw_pvscsi.c:338!"

System crash in blk_mq_free_request() following NVMe controller reset due to NULL mq_hctx

System crash due to use-after-free in NVMe request double completion

System crash in dma_direct_unmap_sg() while having rport issues and using bnx2fc driver

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