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RE: Kernel oops in iwlwifi 6.6.3 with AX210 while scanning (looks like firmware bug)

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> -----Original Message-----
> From: Paul Grandperrin <paul.grandperrin@xxxxxxxxx>
> Sent: Thursday, December 07, 2023 03:00
> To: Greenman, Gregory <gregory.greenman@xxxxxxxxx>
> Cc: linux-wireless@xxxxxxxxxxxxxxx
> Subject: Kernel oops in iwlwifi 6.6.3 with AX210 while scanning (looks like
> firmware bug)
> 
> Hi!
> 
> My system was running fine, no errors in the logs, and then it started to happen,
> an infinite flow of oops in the kernel logs.
> 
> The bug seems to happen in "__ieee80211_scan_completed" and it seems to
> involve the firmware: "Microcode SW error detected. Restarting",
> "ieee80211 phy0: Hardware restart was requested" and "iwlwifi
> 0000:02:00.0: FW error in SYNC CMD SCAN_REQ_UMAC".
> 
> Since then, the iwlwifi module oops all the time, even after unloading and
> reloading it.
> 
> My system:
> NixOS 23.11
> Linux 6.6.3
> Intel(R) Wi-Fi 6 AX210 160MHz, REV=0x420 firmware version: 83.e8f84e98.0 ty-
> a0-gf-a0-83.ucode
> 
> Here's the logs attached and more info about my system.
> 
> I tried very hard to get decode_stacktrace.sh to works with module symbols but
> the NixOS file hierarchy makes things quite difficult.
> I can try again if needed.
> 
> 
> Sincerly,
> Paul Grandperrin
> 
> 
> 
> 
> 
> 

Hi Paul,

Can you please open a bug in Bugzilla, so we can handle it there?

Please attach there a sniffer capture and a trace-cmd log.
This is how to: https://wireless.wiki.kernel.org/en/users/drivers/iwlwifi/debugging

Thanks,
Miri







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