Messages in this thread | | | Date | Thu, 12 Mar 1998 16:19:39 -0800 (PST) | From | Liem Bahneman <> | Subject | SYN flood = VFS: No free inodes - contact Linus? |
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We've got a beefy server here that's crashed twice today. I dont know what the cause of the crash, but syslog reported "VFS: No free inodes - contact Linus" then a mix of SYN cookie warnings and inode warnings.
Specs: ALR revolution 6x6 (6x ppro200) 2.0.30 tulip.c 0.77 (only one stable with smp, locked in at 100bT/FD) DPT 3334UW controller BusLogic BT-950
syn/rst cookies on always defrag filehandles patch ip_fragment.c patch (alan cox's and mount's)
It looks like the VFS error came first, then the spew of SYN warnings and more VFS errors. Is this a problem with the filesyste? syn/rst cookies?
This system hosts ~3500 web sites and has _800_ ip aliases, so its a regular target of attacks (any one of 800 ips), but this is the most nasty crash it has experienced. This specific crash has happened twice in a month.
Any ideas what could be going on?
I'm not a subscriber to this list, so please respond directly
- liem ============================================================================ Liem Bahneman roland@cobaltgroup.com Senior Systems Administrator http://www.cobaltgroup.com/~roland The Cobalt Group (206) 269-6363 x300 Seattle, Washington F(206) 269-6350
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