Date: Tue, 25 Sep 2001 16:49:17 +0200 (CEST) From: Andreas Haakh <ah@Haakh.de> To: Boris Staeblow <bs@dva.in-berlin.de> Cc: <freebsd-isdn@FreeBSD.ORG> Subject: Re: 4.4R: loaded NETGRAPH and ifconfig iprX down -> page fault! Message-ID: <20010925164724.Q21741-100000@alvman.Haakh.de> In-Reply-To: <20010921111244.A1039@dva.in-berlin.de>
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Hi, same problem here. netgraph is loaded by /boot/loader and any ifconfig iprX down causes a crash. Even more. The system will not run stable if you don't touch it. It will crash randomly, several times a day. Andreas On Fri, 21 Sep 2001, Boris Staeblow wrote: > Hello, > > There seems to be a serious bug in I4B: > If NETGRAPH is loaded and you 'ifconfig iprX down' an interface > the system will crash always with: > > > Fatal Trap 12: page fault while in kernel mode > fault virtual address = 0x31727079 > fault code = supervisor read, page not present > instruction pointer = 0x8:0xc017323d > stack pointer = 0x10:0xd1a58df4 > frame pointer = 0x10:0xd1a58e00 > code segment = base 0x0, limit 0xfffff, type 0x1b > = DPL 0, pres 1, def32 1, gran 1 > precessor eflags = interrupt enabled, resume, IOPL = 0 > current process = 32457 (ifconfig) > interrupt mask = net tty > trap number = 12 > panic: page fault > > syncing disks... > done > > > This is reproduceable. The crash will not occur when netgraph is not > loaded / defined in kernel (but I need it for pppoed!). > > The system will crash too when the iprX-connection establishes > (to old an current I4B-Versions and Suse-Linux). > > The system will always crash if you enter "ifconfig iprX ether x:x:x:x:x:x..." > (it doesn't matter if netgraph is loaded or not in this case). > > These bugs where reproduced on a totally different 4.4R machine. > These bugs didn't occur on 4.3R _or_ with the previous i4b-Release in -STABLE. > > > My enviroment: > > - FreeBSD 4.4-RELEASE > - I4B 01.00.1 > > > > Is this reproduceable on other machines? Are there any fixes? > > Boris > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-isdn" in the body of the message > -- Ingenieurbüro für Baustatik * Dipl.-Ing. Andreas Haakh Mollerstraße 7 * 64289 Darmstadt * Andreas@Haakh.de Tel. 06151-788361 Fax. 06151-788362 Mobil 0173-361.6884 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-isdn" in the body of the message
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