kernel panic at "RIP find_busiest_group" if isolcpus parameter is added to grub.conf.

Solution Verified - Updated -

Issue

  • kernel panic at "RIP find_busiest_group" with isolcpus grub parameter.

  • kernel panic RIP with below traces .

     #0 [103f8f87d20] netpoll_start_netdump at ffffffffa012a366
 #1 [103f8f87d50] die at ffffffff80111c00
 #2 [103f8f87d70] do_divide_error at ffffffff80111e4f
 #3 [103f8f87e30] error_exit at ffffffff80110d91
    [exception RIP: find_busiest_group+294]
    RIP: ffffffff801331d3  RSP: 00000103f8f87ee0  RFLAGS: 00010046
    RAX: 0000000000000000  RBX: 0000000000000000  RCX: 0000000000000000
    RDX: 0000000000000000  RSI: 0000000000000008  RDI: 0000000000000000
    RBP: 00000103f8f87f38   R8: ffffffff80467908   R9: 0000000000000008
    R10: 0000000000000000  R11: 0000000000000008  R12: 0000000000000000
    R13: 00000103f8f87f68  R14: 0000000000000000  R15: 0000000000000001
    ORIG_RAX: ffffffffffffffff  CS: 0010  SS: 0018
 #4 [103f8f87f40] rebalance_tick at ffffffff801334d4
 #5 [103f8f87fa0] smp_apic_timer_interrupt at ffffffff8011cbcc
 #6 [103f8f87fb0] apic_timer_interrupt at ffffffff80110bf5

Environment

  • Red Hat Enterprise Linux 4
  • kernel 2.6.9-42.0.10.EL

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