kern/44950: SMP kernel crash in vm_page_free: freeing wired page

[Heiko Weber]

The following reply was made to PR kern/44950; it has been noted by GNATS.

From: "Heiko Weber" <heiko at terminmarktwelt.de>
To: <freebsd-gnats-submit at FreeBSD.org>, <heiko at wecos.de>
Cc: =?iso-8859-1?Q?Lars_K=F6ller?= <lars.koeller at uni-bielefeld.de>
Subject: Re: kern/44950: SMP kernel crash in vm_page_free: freeing wired page
Date: Mon, 4 Aug 2003 21:51:43 +0200

 Hi !
 
 Now I have a second SMP machine (Fujitsu Siemens TX200 with two Xeon) 
 with same configuration, now FreeBSD 4.8-STABLE. 
 
 "Same procedure than last year Mrs. Sophie ?"
 "Same procedure than every year James !". 
 
 With an uptime of about 2 days I got today the first crash: stack trace is:
 
 (kgdb) where
 #0  0xc016e052 in dumpsys ()
 #1  0xc016de23 in boot ()
 #2  0xc016e27c in poweroff_wait ()
 #3  0xc02286ca in vm_page_free_toq ()
 #4  0xc02274bc in vm_object_collapse ()
 #5  0xc02266d0 in vm_object_deallocate ()
 #6  0xc0223b74 in vm_map_entry_delete ()
 #7  0xc0223d2d in vm_map_delete ()
 #8  0xc0223dba in vm_map_remove ()
 
 Someone has an idea other than turn off SMP ?
 
 Heiko
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