Date: Wed, 01 Jul 2009 12:29:08 +0300 From: Nikos Vassiliadis <nvass9573@gmx.com> To: Manolis Kiagias <sonicy@otenet.gr> Cc: freebsd-questions@freebsd.org Subject: Re: Failing to show 'Password:' prompt Message-ID: <4A4B2C64.4040508@gmx.com> In-Reply-To: <4A4B0E8E.4090501@otenet.gr> References: <4A4B0E8E.4090501@otenet.gr>
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Manolis Kiagias wrote: > This morning my server was unresponsive both from ssh and through http. > The only thing that is different on this system on a 1st of month, is a > dump job that runs through periodic (on a mostly inactive system). > > Visiting the console, I discovered the system was still up and > displaying login prompt on all vtys, but after typing a username, the > password prompt would never appear. Keyboard was responsive and I could > even switch between keyboard layouts (English/Greek). Plugging and and > unplugging an external USB drive, showed the kernel messages on tty0. > Still, I could not get it to display a password prompt and had to hard > reboot it. > > I can't find anything in /var/log/messages either - it stops at 5.25 in > the morning. And the dump was not performed either (and there are no > traces about it in the log). > > What kind of crash could cause the password prompt to not display? Ideas? Geia Manoli, A deadlock somewhere in the filesystem code would expose such behavior. Other subsystems may continue to work, but some operations, somehow related to that filesystem code, will wait - forever - for some locks to be released. I've seen such behavior in early RELENG_6 branch with regard to UFS snapshots. Nikos
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