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Failed E-Series thin volumes resulting in recursive controller(s) reboot

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Applies to

  • All E-Series platforms
  • Thin provisioned volumes
  • E-Series SANtricity OS 11.40.x or 11.50.x 
  • Latest 11.30 E-Series SANtricity OS

Issue

  • Potentially, one or more failed thin provisioned volumes are reported in SANtricity management application.
  • Controller(s) is/are recursively rebooting due to a software page fault exception. The exception log (excLogShow) includes one or both of the following exceptions:

Exception: Page Fault
   errCode:  0  pc:  0xffffffff819f1ff1   _ZN4vutl13WriteAheadLog17waLogFreePrefetchEv + 0x1

Registers:
   r15    = 0xffff8000208580b0   r14    = 0xffff800020858100   r13    = 0x0000000000000005   r12    = 0xffff800020858100
   r11    = 0x0000000100210d48   r10    = 0x0000000100210d48   r9     = 0xffff80001a82e534   r8     = 0xffff80001a82e500
   rdi    = 0x0000000000000000   rsi    = 0xffff800020857a58   rbp    = 0xffff80002067ae80   rsp    = 0xffff80002067ade0
   rbx    = 0xffff800020856d30   rdx    = 0xffff800020857a50   rcx    = 0x0000000000000000   rax    = 0xffff800020857a50
   rflags = 0x0000000000000286   pc     = 0xffffffff819f1ff1   fs     = 0x0000000000000000
Stack Trace:
ffffffff80544978 vxTaskEntry         +0x58  : vkiTask +0x89 ()
ffffffff802e6843 vkiTask             +0xb3  : _ZN3cow16RepositoryVolume13workQueueTaskEPNS0_16WorkQueueControlE +0x28 ()
ffffffff81bb5778 _ZN3cow16RepositoryVolume13workQueueTaskEPNS0_16WorkQueueControlE+0x218 : _ZN3cow16RepositoryVolume17recoverRepositoryEb ()
ffffffff819f1ff1 _ZN4vutl13WriteAheadLog17waLogFreePrefetchEv+0x1   : (current instruction)

Exception: Page Fault
   errCode:  0  pc:  0xffffffff81b8ce16   _ZN3cow16RepositoryVolume23getClusterLocationIndexEP3bufyy + 0xa6

Registers:
   r15    = 0xffff8000208539b0   r14    = 0xffff800020854d00   r13    = 0xffff8000516260c0   r12    = 0x0000000000000005
   r11    = 0xffff80002069dfe0   r10    = 0x0000000000000000   r9     = 0x0000000000000000   r8     = 0x0000000000000200
   rdi    = 0xffff800020854d00   rsi    = 0x0000000000000000   rbp    = 0xffff800004b91b30   rsp    = 0xffff800004b919d0
   rbx    = 0xffff8000516260c0   rdx    = 0x0000000000000005   rcx    = 0x0000000000000800   rax    = 0x0000000000000000
   rflags = 0x0000000000000282   pc     = 0xffffffff81b8ce16   fs     = 0x0000000000000000

.....

 

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