PowerScale Node Panics with Error: smsatReadLogExtCB: no matching pccb found

Summary: PowerScale node panics with error: smsatReadLogExtCB: no matching pccb found -- status 0x41 error 0x40 phy 5 lba 0x36ceff96 satNCQ 0x1 satOrgIOContext 0xfffffe8ef3da07a8 reqType 0x20001d00 sataTag 0x10 ...

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Symptoms

Node panics with the below stack:

panic @ time 1728809334.451, thread 0xfffffe8ef3382b00: smsatReadLogExtCB: no matching pccb found -- status 0x41 error 0x40 phy 5 lba 0x36ceff96 satNCQ 0x1 satOrgIOContext 0xfffffe8ef3da07a8 reqType 0x20001d00 sataTag 0x10

time = 1728809334
cpuid = 2, TSC = 0x11360273d277825
Panic occurred in module pmspcv.ko loaded at 0xffffffff83de1000:

Stack: --------------------------------------------------
pmspcv.ko:smsatReadLogExtCB+0x66d
pmspcv.ko:smllSATACompleted+0xc9
pmspcv.ko:siIODone+0x152
pmspcv.ko:mpiSATACompletion+0x4c3
pmspcv.ko:mpiParseOBIomb+0x50e
pmspcv.ko:siProcessOBMsg+0xb9
pmspcv.ko:saDelayedInterruptHandler+0x1cd
pmspcv.ko:agtiapi_IntrHandlerx_+0x88
kernel:ithread_loop+0x21c
kernel:fork_exit+0x82
--------------------------------------------------
Disabling swatchdog
Dumping stacks (40960 bytes)

Cause

A rare known issue where a SATA drive receives heavy I/O requests causes this panic.

Resolution

Workaround:
Set the following sysctl:

isi_sysctl_cluster hw.iosched.max_disk_inprog_limit=16

Permanent Solution:
Upgrade to one of the following versions or later:
  • OneFS 9.4.0.16_GA-RUP_2023-11
  • OneFS 9.5.x

Affected Products

Isilon H500
Article Properties
Article Number: 000236632
Article Type: Solution
Last Modified: 23 Oct 2024
Version:  1
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