Patching recommendations for poll related hangs/panics

(Doc ID 2067711.1)

Last updated on JULY 29, 2016

Applies to:

Solaris Operating System - Version 10 8/11 U10 to 10 8/11 U10 [Release 10.0]
Solaris Operating System - Version 10 1/13 U11 and later
Information in this document applies to any platform.


 There have been several documents released for poll related hangs/panics:

Solaris 10 and 11 systems may panic in pollhead_delete() 1537672.1
Solaris 10 and 11 Systems May Panic in pollhead_delete() with the fix for BUG 15739258 Installed 1599552.1
Issues In Solaris 10 and Solaris 11.1 May Cause a System Panic ('devpoll_clean_fd') or A Network Outage 1619580.1
Issues With Certain Solaris 10 patches and Solaris 11 SRUs May Cause a Process to Become "Unkillable" 1641745.1

The minimum suggested patch level is: 

SPARC Platform

  • Solaris 10 patch 150400-10
  • Solaris

x86 Platform

  • Solaris 10 patch 150401-10
  • Solaris


Additional poll fixes have since been released:

Bug ID Description Fixed
15615053 panic in delfpollinfo

SPARC Solaris 10 patch 150400-15

x86       Solaris 10 patch 150401-15


18275232 panic due to race between dpclose->pollhead_delete and strclose->pollhead_clean     

SPARC Solaris 10 patch 150400-27

x86       Solaris 10 patch 150401-27


20389674 panic in pollhead_delete()

SPARC Solaris 10 patch 150400-27

x86       Solaris 10 patch 150401-27


The overall recommendation is to apply the latest patch



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