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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 JULY 06, 2023

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



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