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* Re: [9front] Panic when unplugging Thunderbolt <-> USB <-> Ethernet dongle
@ 2017-09-22  9:54 cinap_lenrek
  0 siblings, 0 replies; 3+ messages in thread
From: cinap_lenrek @ 2017-09-22  9:54 UTC (permalink / raw)
  To: 9front

you need to provide your kernel image for further investigation. theres no amd64
kernel on the 9front iso.

--
cinap


^ permalink raw reply	[flat|nested] 3+ messages in thread

* Re: [9front] Panic when unplugging Thunderbolt <-> USB <-> Ethernet dongle
@ 2017-09-22 11:46 cinap_lenrek
  0 siblings, 0 replies; 3+ messages in thread
From: cinap_lenrek @ 2017-09-22 11:46 UTC (permalink / raw)
  To: 9front

for the record: we figured out that what happens is that the whole xhci controller
pci device got pulled, and all mmio registers return 0xFFFFFFFF from that point
on. causing the capability walking routine to go beyond the mmio region. recent
commt works arround this and checks if the device vanisched by comparing the
CAPLENGTH register to -1 in init():

http://code.9front.org/hg/plan9front/rev/63dc0f7f4f2e

--
cinap


^ permalink raw reply	[flat|nested] 3+ messages in thread

* Re: [9front] Panic when unplugging Thunderbolt <-> USB <-> Ethernet dongle
@ 2017-09-22  9:32 Alex Musolino
  0 siblings, 0 replies; 3+ messages in thread
From: Alex Musolino @ 2017-09-22  9:32 UTC (permalink / raw)
  To: alex, 9front

I should also mention the actual panic message:

panic: kernel fault: bad address pc=0xffffffff801d1db3 addr=0xffffff00e9f3fffc

--
Cheers,
Alex Musolino


^ permalink raw reply	[flat|nested] 3+ messages in thread

end of thread, other threads:[~2017-09-22 11:46 UTC | newest]

Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
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2017-09-22  9:54 [9front] Panic when unplugging Thunderbolt <-> USB <-> Ethernet dongle cinap_lenrek
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2017-09-22 11:46 cinap_lenrek
2017-09-22  9:32 Alex Musolino

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