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Bug#683849: [d-i Wheezy Beta1] [amd64] Installer hangs while loading partitioner (mdadm/mount deadlock)



clone 683849 -1
reassign -1 hw-detect
retitle -1 Apparent hang while trying to check for missing firmware for some network cards
reassign 683849 mountmedia
retitle 683849 Hangs while mounting partitions with no filesystem
thanks

Quoting Karsten Merker (merker@debian.org):

Thanks for your detailed report which I split in two as there are
obviously two involved issues

> 
> It look like the two "hangs" result from trying to find the firmware files
> iwlwifi-2030-6.ucode (for WiFi) and rtl_nic/rtl8168e-3.fw (for wired
> ethernet). This seems to be the same problem as in bugs #683690 and #683692.

Do you have logs for this?

> The hanging in the partitioner stage seems to be caused by a deadlock
> between mdadm and a mount process in "D" state (cf. the attached syslog):
> 
>  5219 root      4424 D    mount /dev/sda2 -tauto /media
> 
>  6358 root      4556 S    {25md-devices} /bin/sh /lib/partman/init.d/25md-devices
>  6362 root         0 SW<  [md]
>  6364 root      6156 S    log-output -t md-devices --pass-stdout mdadm /--examine --scan --config=partitions
>  6365 root      4596 D    mdadm --examine --scan --config=partitions
> 
> /dev/sda2 is an extended partition which does not contain any filesystem; it
> is just the container for the logical partitions /dev/sda5 to /dev/sda8.
> Trying to mount it should not cause a hanging mount command, but on the
> other hand, as extended partitions are not supposed to contain a filesystem,
> the installer probably should not try to mount it at all. 

It's kinda weird that nobody went on this but your analysis seems
correct.


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