[arch-releng] ISO 2014.11.01: installing packages may cause system failure

Peter Mattern matternp at arcor.de
Mon Nov 10 16:41:36 UTC 2014

Am 10.11.2014 um 17:18 schrieb Christian Hesse:
> Peter Mattern<matternp at arcor.de>  on Mon, 2014/11/10 17:14:
>> As of ISO 2014.11.01 attempts to install packages within the live system
>> itself can cause complete system failure, apparently due to problems
>> affecting device mapper.
>> The problem is a regression that can't be seen with ISO 2014.10.01.
>> It doesn't always appear and I couldn't find out the exact conditions.
>> But it seems the number / volume of packages that are about to be
>> installed has to exceed some kind of threshold.
>> Also, it doesn't affect running pacstrap the usual way.
>> Attaching journalctl output from a KVM/QEMU instance (behaviour is the
>> same booting "bare metal", though).
> The cowfile has a default size of 256MB now. Probably that filled up. Try to
> boot with cowfile_size=2G and try again.
Any attempt to do so (2g, 1g, 256[m]b) results in kernel panic, the last 
line before reading
      /init: line 48: arithmetic syntax error

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