Date: Wed, 18 Apr 2001 12:19:47 +0200 From: Sven Huster <sven.huster@mailsurf.com> To: freebsd-stable@freebsd.org Subject: 4.3-RC mount_null problem on diskless machine Message-ID: <5.1.0.14.0.20010418121945.02580930@mx01.mailsurf.com>
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Hi there, i got a big problem with mount_null in FreeBSD. the /etc/rc.diskless* scripts use moun_null to mount their mfs mounted dirs over /etc and /tmp, but often when i try to write on /tmp or /etc i get a panic. like as i tried to temp change the root passwd on the machine Fatal trap 12: page fault while in kernel mode fault virtual address = 0x6d fault code = supervisor read, page not present instruction pointer = 0x8:0x6d stack pointer = 0x10:0xd03d5c64 frame pointer = 0x10:0xd03d5cf4 code segment = base 0x0, limit 0xfffff, type 0x1b = DPL 0, pres 1, def32 1, gran 1 processor eflags = interrupt enabled, resume, IOPL = 0 current process = 109 (mount_mfs) interrupt mask = none kernel: type 12 trap, code=0 Stopped at 0x6d: Fatal trap 12: page fault while in kernel mode fault virtual address = 0x6d fault code = supervisor read, page not present instruction pointer = 0x8:0xc0250388 stack pointer = 0x10:0xd03d5acc frame pointer = 0x10:0xd03d5ad0 code segment = base 0x0, limit 0xfffff, type 0x1b = DPL 0, pres 1, def32 1, gran 1 processor eflags = interrupt enabled, resume, IOPL = 0 current process = 109 (mount_mfs) interrupt mask = none kernel: type 12 trap, code=0 / is mounted via nfs + /etc/rc.diskless* scripts run normally at startup i know mount_null is not declared stable (in the man page), but if its like this why is this thing in /etc/rc.diskless*? i fixed /tmp by changing it to a symlink, but not 100% sure what to do with /etc. test# uname -a FreeBSD test.mailsurf.com 4.3-RC FreeBSD 4.3-RC #1: Tue Apr 17 12:16:14 GMT 2001 root@test.mailsurf.com:/usr/obj/usr/src/sys/MAILSURF i386 any suggestions? regards Sven Huster Senior IT Systems Administrator *BSD, Linux, Solaris To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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