Date: Sun, 31 Jul 2022 16:55:37 +0000 From: John F Carr <jfc@mit.edu> To: freebsd-arm <freebsd-arm@freebsd.org> Subject: ARM64 system error Message-ID: <82D60642-4087-4EED-B790-F8FE81A188C5@mit.edu>
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My OverDrive 1000 (Cortex A57) running CURRENT just crashed with the =
unhelpful message "panic: Unhandled System Error". Is there any way to =
get better information? The ESR value bf000000 translates to "system =
error with implementation-defined code 0" so that's not much use. The =
instruction associated with the interrupt can't fault ("subs w22, w22, =
#0x1") so it must be an asynchronous error. On other systems I've seen =
bits you can test or registers you can read to get details.
x0: 0
x1: ffff0000b55bd000 (crypto_dev + b3f34ec0)
x2: 2880
x3: 20
x4: d3
x5: 0
x6: 100
x7: ffff00011063daa0
x8: ffff00000077218c (generic_bs_r_2 + 0)
x9: 2880
x10: ffff0000001ff9f4 (msk_phy_readreg + 84)
x11: a0000045
x12: 56000000
x13: 5e4a6f28
x14: ffff000000c4d038 (vnet_entry_ipport_stoprandom + 0)
x15: ffffa000016b3000
x16: 40ef9400
x17: a
x18: ffff0000b550e560 (crypto_dev + b3e86420)
x19: ffff0000b57dc000 (crypto_dev + b4153ec0)
x20: ffffa000029dc800
x21: 2880
x22: 3c4
x23: 796d
x24: ffffa000017f4100
x25: ffff000000ad3da0 (miibus_readreg_desc + 0)
x26: ffff000000bb6000 (vop_deallocate_desc + 28)
x27: ffff000000e36980 (cc_cpu + 80)
x28: ffff000000b1b828 (lock_class_mtx_sleep + 0)
x29: ffff0000b550e670 (crypto_dev + b3e86530)
sp: ffff0000b550e560
lr: ffff0000001ff9f0 (msk_phy_readreg + 80)
elr: ffff00000077806c (handle_el1h_irq + 8)
spsr: a00002c5
far: 0
esr: bf000000
panic: Unhandled System Error
cpuid =3D 2
time =3D 1659270153
KDB: stack backtrace:
db_trace_self() at db_trace_self
db_trace_self_wrapper() at db_trace_self_wrapper+0x30
vpanic() at vpanic+0x13c
panic() at panic+0x44
do_serror() at do_serror+0x40
handle_serror() at handle_serror+0x38
--- system error, esr 0xbf000000
handle_el1h_irq() at handle_el1h_irq+0x8
--- interrupt
msk_phy_readreg() at msk_phy_readreg+0x84
e1000phy_status() at e1000phy_status+0x114
e1000phy_service() at e1000phy_service+0x420
mii_tick() at mii_tick+0x50
msk_tick() at msk_tick+0x44
softclock_call_cc() at softclock_call_cc+0x128
softclock_thread() at softclock_thread+0xc4
fork_exit() at fork_exit+0x74
fork_trampoline() at fork_trampoline+0x14
KDB: enter: panic
[ thread pid 2 tid 100026 ]
Stopped at kdb_enter+0x44: undefined f907c27f
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