From owner-freebsd-current Fri May 18 19:17:20 2001 Delivered-To: freebsd-current@freebsd.org Received: from updraft.jp.freebsd.org (updraft.jp.FreeBSD.ORG [210.157.158.42]) by hub.freebsd.org (Postfix) with ESMTP id CD33737B422 for ; Fri, 18 May 2001 19:17:13 -0700 (PDT) (envelope-from matusita@jp.FreeBSD.org) Received: from localhost (localhost [127.0.0.1]) by updraft.jp.freebsd.org (8.11.3+3.4W/8.11.3) with ESMTP/inet id f4J2HB868160 for ; Sat, 19 May 2001 11:17:11 +0900 (JST) (envelope-from matusita@jp.FreeBSD.org) X-Face: '*aj"d@ijeQ:/X}]oM5c5Uz{ZZZk90WPt>a^y4$cGQp8:!H\W=hSM;PuNiidkc]/%,;6VGu e+`&APmz|P;F~OL/QK%;P2vU>\j4X.8@i%j6[%DTs_3J,Fff0)*oHg$A.cDm&jc#pD24WK@{,"Ef!0 P\):.2}8jo-BiZ?X&t$V X-User-Agent: Mew/1.94.2 XEmacs/21.5 (alfalfa) X-FaceAnim: (-O_O-)(O_O- )(_O- )(O- )(- -)( -O)( -O_)( -O_O)(-O_O-) Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Dispatcher: imput version 20000228(IM140) Lines: 64 From: Makoto MATSUSHITA To: current@freebsd.org Subject: Mounting CD9660 filesystem as root filesystem is broken Date: Sat, 19 May 2001 11:16:55 +0900 Message-Id: <20010519111655N.matusita@jp.FreeBSD.org> Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG I've send a email before about this[1], but a situation is not changed until now. My friends does confirm the situation recently[2], so I send a email again... *** It seems that recent (as of May/2001) 5-current kernel cannot mount CD9660 filesystem (usually CD-ROM) as a root filesystem. The kernel behavior is a little bit different both ATAPI CD-ROM and SCSI CD-ROM. - ATAPI CD-ROM (using 440BX/i815 motherboard, on-board IDE) As said before[1], kernel try to mount but failed. Mounting root from cd9660:cd0a setrootbyname failed iso_mountroot: can't find rootvp Root mount failed: 6 Mounting root from cd9660:acd0a setrootbyname failed iso_mountroot: can't find rootvp Root mount failed: 6 Mounting root from cd9660:wcd0a setrootbyname failed iso_mountroot: can't find rootvp Root mount failed: 6 No matter the kernel can mount root filesystem or not, it seems that src/sys/vfs_conf.c needs modification, no 'wcd' anymore:) - SCSI CD-ROM (using AHA-2940UW as SCSI HA) Unfortunately, kernel panics when it try to mount CD-ROM. Mounting root from cd9660:cd0a Fatal trap 12: page fault while in kernel mode fault virtual address = 0x28 fault code = supervisor read, page not present instruction pointer = 0x8:0xc025f4e7 stack pointer = 0x10:0xc05cedb4 frame pointer = 0x10:0xc05cedd8 code segment = base 0x0, limit 0xfffff, type 0x1b = DPL 0, pres 1, def32 1, gran 1 processor eflags = interrupt enables, resume, IOPL=0 current process = 0 (swapper) kernel: type 12 trap, code = 0 Stopped at dsioctl+0x3f: movl 0xc(%eax),%eax As a result, mounting CD9660 filesystem (formaly CD9660_ROOT) is broken in recent 5-current. Any clues? P.S.: A procedure to make a CD-ROM itself is shown in my previous email[1]. -- - Makoto `MAR' MATSUSHITA Appendix: [1] http://docs.freebsd.org/cgi/getmsg.cgi?fetch=17671+0+archive/2001/freebsd-current/20010422.freebsd-current [2] Thanks to kuriyama-san (ATAPI CD-ROM case) and motoyuki-san (SCSI CD-ROM case). To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message