Servers running 11.3 SRU 20.5 or later, or Solaris 10 150400-56/150401-56 may hang due to a deadlock between dmu_free_long_range_dnode() and zfs_putapage()
(Doc ID 2344707.1)
Last updated on FEBRUARY 03, 2019
Applies to:Solaris Operating System - Version 11.3 to 11.3 [Release 11.0]
Solaris Operating System - Version 10 1/13 U11 to 10 1/13 U11 [Release 10.0]
Information in this document applies to any platform.
Should the issue described in this knowledge document be encountered, the system will appear hung and a forced system panic needs to be created for analysis. The crash dump will show a deadlock between dmu_free_long_range_dnode() and zfs_putapage(). An example of which is:
This issue can only be seen on systems with the fix for 'Bug 25190388 - zfs_trunc() and zfs_putpage() deadlocks on dn_struct_rwlock' which was delivered in the following OS releases
- Solaris 10 SPARC Kernel 150400-56 or later
- Solaris 10 x86 Kernel 150401-56 or later
- Solaris 11.3 SRU 20.5 or later
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