[Bug 233088] Kernel Panic, mainly during high I/O stress (poudriere bulk)

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=233088

            Bug ID: 233088
           Summary: Kernel Panic, mainly during high I/O stress (poudriere
                    bulk)
           Product: Base System
           Version: CURRENT
          Hardware: arm64
                OS: Any
            Status: New
          Severity: Affects Some People
          Priority: ---
         Component: arm
          Assignee: freebsd-arm at FreeBSD.org
          Reporter: sbruno at FreeBSD.org

Port Manager is experiencing repeatable panics on -current when trying to build
packages on the Cavium Thunderx Platform:

FreeBSD thunderx1.nyi.freebsd.org 13.0-CURRENT FreeBSD 13.0-CURRENT r340050
GENERIC-NODEBUG  arm64

Fatal data abort:
  x0:                e
  x1: ffff000000d8c118
  x2:               21
  x3:              103
  x4: fffffd1f296aa000
  x5: ffff0001780e0418
  x6: ffff0001780e051c
  x7: ffff0001780e050c
  x8:                1
  x9:                1
 x10:               21
 x11:                0
 x12:                0
 x13:         b5400703
 x14:     ffffffffa160
 x15:         4062b344
 x16:         401b3f94
 x17:     ffffffffa4f0
 x18: ffff0001780e0360
 x19: ffff0000011bd9a8
 x20: fffffd0000000000
 x21: fffffd1f296aa000
 x22: ffff0000011bd000
 x23:                0
 x24: ffff000062000000
 x25:                0
 x26:                e
 x27:        407fc0001
 x28:                1
 x29: ffff0001780e03d0
  sp: ffff0001780e0360
  lr: ffff0000006f77a4
 elr: ffff0000006f77a8
spsr:         60400345
 far:               5e
 esr:         96000007
panic: vm_fault failed: ffff0000006f77a8
cpuid = 8
time = 1541768414
KDB: stack backtrace:
db_trace_self() at db_trace_self_wrapper+0x28
         pc = 0xffff0000006e4b3c  lr = 0xffff0000000f70b8
         sp = 0xffff0001780dfd50  fp = 0xffff0001780dff60

db_trace_self_wrapper() at vpanic+0x1a8
         pc = 0xffff0000000f70b8  lr = 0xffff0000003b0ffc
         sp = 0xffff0001780dff70  fp = 0xffff0001780e0020

vpanic() at panic+0x44
         pc = 0xffff0000003b0ffc  lr = 0xffff0000003b0e50
         sp = 0xffff0001780e0030  fp = 0xffff0001780e00b0

panic() at data_abort+0x1d8
         pc = 0xffff0000003b0e50  lr = 0xffff0000006fd93c
         sp = 0xffff0001780e00c0  fp = 0xffff0001780e0170

data_abort() at do_el1h_sync+0x11c
         pc = 0xffff0000006fd93c  lr = 0xffff0000006fd660
         sp = 0xffff0001780e0180  fp = 0xffff0001780e01b0

do_el1h_sync() at handle_el1h_sync+0x74
         pc = 0xffff0000006fd660  lr = 0xffff0000006e7074
         sp = 0xffff0001780e01c0  fp = 0xffff0001780e02d0

handle_el1h_sync() at pmap_enter_l2+0x128
         pc = 0xffff0000006e7074  lr = 0xffff0000006f77a0
         sp = 0xffff0001780e02e0  fp = 0xffff0001780e03d0

pmap_enter_l2() at pmap_enter+0x104
         pc = 0xffff0000006f77a0  lr = 0xffff0000006f6830
         sp = 0xffff0001780e03e0  fp = 0xffff0001780e0470

pmap_enter() at vm_fault_hold+0xecc
         pc = 0xffff0000006f6830  lr = 0xffff000000691174
         sp = 0xffff0001780e0480  fp = 0xffff0001780e05f0

vm_fault_hold() at vm_fault+0x60
         pc = 0xffff000000691174  lr = 0xffff000000690250
         sp = 0xffff0001780e0600  fp = 0xffff0001780e0630

vm_fault() at data_abort+0xa0
         pc = 0xffff000000690250  lr = 0xffff0000006fd804
         sp = 0xffff0001780e0640  fp = 0xffff0001780e06f0

data_abort() at do_el1h_sync+0x11c
         pc = 0xffff0000006fd804  lr = 0xffff0000006fd660
         sp = 0xffff0001780e0700  fp = 0xffff0001780e0730

do_el1h_sync() at handle_el1h_sync+0x74
         pc = 0xffff0000006fd660  lr = 0xffff0000006e7074
         sp = 0xffff0001780e0740  fp = 0xffff0001780e0850

handle_el1h_sync() at exec_copyin_args+0x88
         pc = 0xffff0000006e7074  lr = 0xffff0000003683bc
         sp = 0xffff0001780e0860  fp = 0xffff0001780e0920

exec_copyin_args() at sys_execve+0x3c
         pc = 0xffff0000003683bc  lr = 0xffff00000036821c
         sp = 0xffff0001780e0930  fp = 0xffff0001780e09a0

sys_execve() at do_el0_sync+0x4f8
         pc = 0xffff00000036821c  lr = 0xffff0000006fdeac
         sp = 0xffff0001780e09b0  fp = 0xffff0001780e0a70

do_el0_sync() at handle_el0_sync+0x84
         pc = 0xffff0000006fdeac  lr = 0xffff0000006e7200
         sp = 0xffff0001780e0a80  fp = 0xffff0001780e0b90

handle_el0_sync() at 0x24940
         pc = 0xffff0000006e7200  lr = 0x0000000000024940
         sp = 0xffff0001780e0ba0  fp = 0x0000ffffffffa650

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