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Re: disk encryption causing kernel panic

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Le 14/10/2018 à 22:32, Bill a écrit :
> 
> The problem seems to be that there is a bug in cryptsetup? which causes 
> a kernel panic.

AFAIK bugs in userland programs don't cause kernel panics. Kernel bugs 
do. Userland programs may only trigger kernel bugs which cause a kernel 
panic.

> In the output below, md2 is (encrypted) swap and md8 is 
> /text - an encrypted partition. /text currently has only a few files 
> which I could sacrifice, although I'd rather not.
> 
> I successfully enter the password for md2 and then don't even see the 
> request for md8_crypt (ie a prompt for input)
> 
> Please unlock disk md2_crypt:
> cryptsetup (md2_crypt): set up successfully
> Please enter passphrase for disk md8_crypt on /text!
                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
What then is this ?

> [   51.451083] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.9.0-3-amd64
As Reco wrote, the panic seems to be related with the swap, which was 
unlocked just before the panic. Did you try to :
- not unlock md2_crypt but only md8_crypt
- unlock md2_crypt but not activate the swap within

You can use a live system or the Debian installer in rescue mode to do 
the tests.

> What would I do if there were a lot of files?

Restore from backup, as usual.

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Thread

disk encryption causing kernel panic Bill <bill3@uniserve.com> - 2018-10-14 23:20 +0200
  Re: disk encryption causing kernel panic Reco <recoverym4n@enotuniq.net> - 2018-10-15 05:30 +0200
  Re: disk encryption causing kernel panic Pascal Hambourg <pascal@plouf.fr.eu.org> - 2018-10-15 20:10 +0200

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