Messages in this thread | | | Date | Tue, 20 May 2008 22:38:33 +0200 | From | Willy Tarreau <> | Subject | Re: 2.6.25.3: su gets stuck for root |
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On Tue, May 20, 2008 at 10:26:16PM +0200, Harald Dunkel wrote: > david@lang.hm wrote: > > > >try killing syslog and then see if you continue to have the problem. > >It's possible that what's happening is syslog is getting stuck and su is > >sitting waiting for syslog to process the log entry. > > > > No improvement: I killed syslogd, and yet stty gets stuck. > > But surely it was a smart idea.
have you checked in /proc/$(pidof stty)/fd/ to see if stty is bound to any particular file descriptor ? Maybe you'll find the source of the blocking operation here. You can find a unix socket attached to another process, it may be a tty, a pipe, or even a device (eg: /dev/random when there is no entropy left). Same for "su" BTW.
Regards, willy
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