Re: [arch-general] [arch-dev-public] [signoff] bash-4.2.005 and readline-6.2.001

On 01/03/11 23:57, Evangelos Foutras wrote:

On Tue, Mar 1, 2011 at 11:39 AM, Eric Bélanger wrote:

...

Another -1. I would recommand everyone to downgrade to the previous versions before rebooting or halting their systems. I had to boot from a live CD in order to downgrade them.

When shutting down, the following was printed:

INIT: Switching to runlevel: 6 INIT: Sending process the TERM signal INIT: no more process left in this runlevel.

And then it just hangs.

On bootup, i got a message about rc.sysinit getting a segfault in bash. Then some errors about not finding the qingy libraries (I use qingy as login manager) probably related to the mount issue that Angel mentionned. Then it hangs.

`unset TZ' is the simplest test case that causes a segmentation fault on my system.

The culprit appears to be the chkexport function introduced in patch bash42-005 [1]. From the backtrace [2], I gather it should probably check that find_variable returns a non-NULL value. Changing the line after the find_variable call to read "if (v&& exported_p (v))" fixes the issue for me.

I've sent a bug report to bug-bash@gnu.org using the neat bashbug command. :p

[1] http://ftp.gnu.org/gnu/bash/bash-4.2-patches/bash42-005 [2] http://ompldr.org/vN20yYg

I forwarded your analysis of the issue to the big-bash list as I am subscribed so it will get straight through. Thanks for looking into this, Allan