Bug#791869: lvm2: updating src:lvm2 from 2.02.111-2.2 to 2.02.122-1 breaks booting, mounting LVs other than / fails

Stefan Lippers-Hollmann s.l-h at gmx.de
Fri Jul 31 03:58:08 UTC 2015


On 2015-07-31, Stefan Lippers-Hollmann wrote:
> On 2015-07-25, Bastian Blank wrote:
> > output (udev.log-priority=8 at the kernel command line) from a failed
> > boot.
> Loading, please wait...
> invalid udev.log[    2.343952] random: systemd-udevd urandom read with 4 bits of entropy available
> -priority ignored: 8

Well, obviously (or rather not quite that obviously), the maximum log 
level is 7.

int util_log_priority(const char *priority)
                if (prio >= 0 && prio <= 7)
                        return prio;
                        return -ERANGE;

However it seems to be even harder to reproduce with udev.log-priority=7
set. While it triggers in roughly 85% of all reboots on this system 
without serial console and special logging parameters, it takes quite a 
few reboots to reproduce with serial console and udev.log-priority=7.

The attached bootlog (serial console && udev.log-priority=7) has
unfortunately not been recorded with an official Debian kernel, but
I've been able to reproduce it with 4.0.0-2-amd64 as well. Just that I
missed increasing the scrollback buffer in time and wasn't able to 
fetch a full bootlog then - and, regardless of the kernel in use, 
reproducing takes quite many reboots (too many for now) with full 
logging enabled.

	Stefan Lippers-Hollmann
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