clone #391353 -1 retitle -1 Should not DoS system if statically linked binary is run reassign -1 linux-image-2.6.18-1-xen-686 submitter -1 Marc Haber <[EMAIL PROTECTED]> block #391353 with -1 thanks
On Fri, Oct 06, 2006 at 08:58:16AM +0200, Raphael Hertzog wrote: > I upgraded my personal server to etch and choosed to use a Xen enabled > kernel since we're going to have Xen support in etch (and also because > we're using this for the new alioth.debian.org so I wanted to have a > testbed for me). > > This morning my server was almost unreachable and while looking through > the logs I discovered those messages: > Oct 6 05:17:34 arrakeen kernel: printk: 246 messages suppressed. > Oct 6 05:17:34 arrakeen kernel: 4gb seg fixup, process aide (pid 1627), > cs:ip 73:080ae335 > Oct 6 05:17:40 arrakeen kernel: printk: 291 messages suppressed. > Oct 6 05:17:40 arrakeen kernel: 4gb seg fixup, process aide (pid 1627), > cs:ip 73:080ae335 > > Those messages appear when you use the standard libc6 instead of libc6-xen > on a Xen enabled kernel. However I have libc6-xen installed.... but aide > is using its own statically linked libc6 which thus generates this > message. > > Those messages means that the kernel worked around the bad libc6 but it's > extremely ineffective in doing so, so much that it effectively DOSsed my > server during the 3 hours when aide was running. I consider this a kernel bug. The kernel should not DoS the system in case a binary statically linked against a normal glibc is run. Greetings Marc -- ----------------------------------------------------------------------------- Marc Haber | "I don't trust Computers. They | Mailadresse im Header Mannheim, Germany | lose things." Winona Ryder | Fon: *49 621 72739834 Nordisch by Nature | How to make an American Quilt | Fax: *49 621 72739835 -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
