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Race condition involving fss_newpri() and exit() can cause panic: BAD TRAP in module FSS (Doc ID 2266092.1)

Last updated on JULY 06, 2023

Applies to:

Solaris Operating System - Version 10 3/05 to 11.3 [Release 10.0 to 11.0]
Solaris x64/x86 Operating System - Version 10 3/05 to 11.3 [Release 10.0 to 11.0]
Information in this document applies to any platform.
This panic will only occur when the Fair Share Scheduler (FSS) is being used.


The panic string will be similar to this:

BAD TRAP: type=e (#pf Page fault) rp=fffffe0001a06900 addr=50 occurred in module "FSS" due to a NULL pointer dereference

and a panic stack similar to this:

unix:die+da ()
unix:trap+5e6 ()
unix:_cmntrap+140 ()
FSS:fss_newpri+1a ()
genunix:cv_unsleep+78 ()
genunix:setrun_locked+7a ()
genunix:setrun+19 ()
genunix:cv_wakeup+33 ()
genunix:callout_list_expire+65 ()
genunix:callout_expire+4d ()
genunix:callout_realtime+21 ()
genunix:cyclic_softint+ba ()
unix:cbe_low_level+14 ()
unix:av_dispatch_softvect+62 ()
apix:apix_dispatch_softint+2e ()
unix:switch_sp_and_call+13 ()
apix:apix_do_softint+74 ()
apix:apix_do_interrupt+23a ()
unix:cmnint+115 ()
unix:acpi_cpu_cstate+108 ()
unix:cpu_acpi_idle+ac ()
unix:cpu_idle_adaptive+13 ()
unix:idle+89 ()
unix:thread_start+8 ()



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