MCE on loading bwn firmware

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When I create a wlan0 interface and attempt to scan on it, I obtain a MCE.

bwn0: ucode fw: ucode16_mimo
bwn_v4_ucode16_mimo: could not load firmware image, error 2
bwn0: the fw file(bwn_v4_ucode16_mimo) not found
bwn0: ucode fw: ucode16_mimo
bwn-open_v4_ucode16_mimo: could not load firmware image, error 2
bwn0: the fw file(bwn-open_v4_ucode16_mimo) not found
MCA: Bank 0, Status 0xb200004000000800
MCA: Global Cap 0x0000000000000005, Status 0x0000000000000000
MCA: Vendor "GenuineIntel"
MCA: CPU 0 UNCOR EN PCC BUSL0 Source ERR Memory
MCA: Bank 5, Status 0xb400040000040400
MCA: Global Cap 0x0000000000000005, Status 0x0000000000000000
MCA: Vendor "GenuineIntel"
MCA: CPU 0 UNCOR EN PCC internal timer error
timeout stopping cpus
panic: Unrecoverable machine check exception
cpuid = 0
time = 1743312562
KDB: stack backtrace:
Uptime: 2m19s
Dumping 192 out of 1745 MB:

Where could I start debugging this?

Asked by Runxi Yu (143 rep)

Mar 30, 2025, 05:36 AM
Last activity: Apr 1, 2025, 10:10 AM

MCE on loading bwn firmware

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