Kernel panic at down_read_trylock+0x9
Issue
- Server experiences kernel panic at
down_read_trylock+0x9after being called frompage_lock_anon_vma_read.
crash> bt
PID: 926 TASK: ffff8820840c4500 CPU: 3 COMMAND: "java"
#0 [ffff88245cdef5d8] machine_kexec at ffffffff81051e9b
#1 [ffff88245cdef638] crash_kexec at ffffffff810f27e2
#2 [ffff88245cdef708] oops_end at ffffffff8163f408
#3 [ffff88245cdef730] die at ffffffff8101859b
#4 [ffff88245cdef760] do_general_protection at ffffffff8163ecfe
#5 [ffff88245cdef790] general_protection at ffffffff8163e5a8
[exception RIP: down_read_trylock+0x9] <--- panicked here and called from below
RIP: ffffffff810aa9f9 RSP: ffff88245cdef848 RFLAGS: 00010282
RAX: 0000000000000000 RBX: ffff883ec5bb5140 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ae275c445a85df8f
RBP: ffff88245cdef848 R8: ffffea00528457a0 R9: ffff883fce384148
R10: 0000000000000008 R11: 0000000000000002 R12: ffff883ec5bb5141
R13: ffffea0052845780 R14: ae275c445a85df8f R15: ffffea0052845780
ORIG_RAX: ffffffffffffffff CS: 0010 SS: 0000
#6 [ffff88245cdef850] page_lock_anon_vma_read at ffffffff811a3335 <---
#7 [ffff88245cdef880] page_referenced at ffffffff811a35b7
#8 [ffff88245cdef8f8] shrink_active_list at ffffffff8117e8cc
#9 [ffff88245cdef9b0] shrink_lruvec at ffffffff8117ef8d
#10 [ffff88245cdefab0] shrink_zone at ffffffff8117f2a6
#11 [ffff88245cdefb08] do_try_to_free_pages at ffffffff8117f7b0
#12 [ffff88245cdefb80] try_to_free_pages at ffffffff8117fc9c
#13 [ffff88245cdefc18] __alloc_pages_nodemask at ffffffff81173998
#14 [ffff88245cdefd50] alloc_page_interleave at ffffffff811b480a
#15 [ffff88245cdefd70] alloc_pages_vma at ffffffff811b8000
#16 [ffff88245cdefdd8] do_huge_pmd_anonymous_page at ffffffff811cc973
#17 [ffff88245cdefe38] handle_mm_fault at ffffffff8119714e
#18 [ffff88245cdefec8] __do_page_fault at ffffffff81642000
#19 [ffff88245cdeff28] do_page_fault at ffffffff81642323
#20 [ffff88245cdeff50] page_fault at ffffffff8163e608
RIP: 00007fb5c08d7c8b RSP: 00007fb57dd7ab00 RFLAGS: 00010202
RAX: 00007fb5c1226909 RBX: 00007fb5b9d7a800 RCX: 00007fb5c11f02b8
RDX: 0000000000000002 RSI: 0000000756200800 RDI: 00007fb5b9d7a858
RBP: 00007fb57dd7ab30 R8: 0000000000000002 R9: 0000000000000002
R10: ffffffffffffffff R11: 00007fb5c12eab4a R12: 0000000756200800
R13: 0000000000000003 R14: 00000007c00783f0 R15: 0000000000000020
ORIG_RAX: ffffffffffffffff CS: 0033 SS: 002b
Environment
- Red Hat Enterprise Linux 7.
- Reported on Red Hat Enterprise Linux 7.1, 7.2 and 7.5
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