Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Thu, 17 Jan 2002 14:05:23 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Thu, 17 Jan 2002 14:05:04 -0500 Received: from smtpsrv0.isis.unc.edu ([152.2.1.139]:17305 "EHLO smtpsrv0.isis.unc.edu") by vger.kernel.org with ESMTP id ; Thu, 17 Jan 2002 14:04:52 -0500 Date: Thu, 17 Jan 2002 14:04:49 -0500 To: Lawrence Walton Cc: linux-kernel@vger.kernel.org Subject: Re: DEVFS broken? Message-ID: <20020117190449.GA2860@opeth.ath.cx> In-Reply-To: <20020117171229.GA1084@the-penguin.otak.com> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="0F1p//8PRICkK4MW" Content-Disposition: inline In-Reply-To: <20020117171229.GA1084@the-penguin.otak.com> User-Agent: Mutt/1.3.25i From: Dan Chen Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org --0F1p//8PRICkK4MW Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Also using Debian sid here (devfsd 1.3.21-1). Over the past two days I've seen random nasties with devfs-v199.6 and v199.7 (I backed out v199.7 in my local tree because my machine refuses to finish booting otherwise). Machine: VIA VT82C693A/694x, PIII/1GHz SMP, 1GB HIGHMEM enabled. What follows is a series of crashes culled from /var/log/kern.log (apologies regarding the format). Before each I'll explain what I did to possibly invoke it. All are with devfs-v199.6 and devfsd-1.3.21 running 2.4.18-pre4 + ext3-2.4-0.9.17-2418p3 + ide.2.4.16.12102001: # modprobe aic7xxx //I tried to start an Eterm in X 4.1.0.1 afterward -- snip -- Jan 16 22:54:50 opeth kernel: invalid operand: 0000 Jan 16 22:54:50 opeth kernel: CPU: 0 Jan 16 22:54:50 opeth kernel: EIP: 0010:[d_instantiate+17/68] Tainted: P=20 Jan 16 22:54:50 opeth kernel: EFLAGS: 00010202 Jan 16 22:54:50 opeth kernel: eax: 5a5a5a00 ebx: f6b5f560 ecx: f7aa1b80 ed x: f6b5f590 Jan 16 22:54:50 opeth kernel: esi: f7aa1b80 edi: f6b5f560 ebp: f7a7f840 es p: f7a41f18 Jan 16 22:54:50 opeth kernel: ds: 0018 es: 0018 ss: 0018 Jan 16 22:54:50 opeth kernel: Process devfsd (pid: 26, stackpage=3Df7a41000) Jan 16 22:54:50 opeth kernel: Stack: f77d9460 c0179b13 f6b5f560 f7aa1b80 f6b5f56 0 00000000 f7a41fa4 f7a83620=20 Jan 16 22:54:50 opeth kernel: c01409be f6b5f560 00000000 f7a41f74 c014118 1 f7a83620 f7a41f74 00000000=20 Jan 16 22:54:50 opeth kernel: f60d4000 00000000 f7a41fa4 00000009 0000000 9 f60d4005 00000000 f60d4004=20 Jan 16 22:54:50 opeth kernel: Call Trace: [devfs_d_revalidate_wait+231/276] [cac hed_lookup+46/84] [link_path_walk+1409/2016] [path_walk+26/28] [__user_walk+53/8 0]=20 Jan 16 22:54:50 opeth kernel: [sys_stat64+25/112] [sys_read+188/196] [system_ call+51/56]=20 Jan 16 22:54:50 opeth kernel:=20 Jan 16 22:54:50 opeth kernel: Code: 0f 0b f0 fe 0d a0 66 2d c0 0f 88 43 09 00 00 85 c9 74 12 8b=20 Jan 16 23:09:25 opeth kernel: <7>VFS: Disk change detected on device ide1(22,0) Jan 16 23:55:23 opeth kernel: scsi0 : Adaptec AIC7XXX EISA/VLB/PCI SCSI HBA DRIV ER, Rev 6.2.4 Jan 16 23:55:23 opeth kernel: Jan 16 23:55:23 opeth kernel: aic7860: Ultra Single Channel A, SCSI Id=3D7 , 3/253 SCBs Jan 16 23:55:23 opeth kernel:=20 Jan 16 23:55:39 opeth kernel: Vendor: PLEXTOR Model: CD-ROM PX-40TS Rev:=20 1.04 Jan 16 23:55:39 opeth kernel: Type: CD-ROM ANSI=20 SCSI revision: 02 Jan 16 23:55:39 opeth kernel: Attached scsi CD-ROM sr0 at scsi0, channel 0, id 3 , lun 0 Jan 16 23:55:39 opeth kernel: (scsi0:A:3): 20.000MB/s transfers (20.000MHz, offs et 15) Jan 16 23:55:39 opeth kernel: sr0: scsi-1 drive Jan 16 23:59:45 opeth kernel: invalid operand: 0000 Jan 16 23:59:45 opeth kernel: CPU: 1 Jan 16 23:59:45 opeth kernel: EIP: 0010:[d_instantiate+17/68] Tainted: P =20 Jan 16 23:59:45 opeth kernel: EFLAGS: 00010202 Jan 16 23:59:45 opeth kernel: eax: 5a5a5a00 ebx: e7304660 ecx: e8d92e00 ed x: e7304690 Jan 16 23:59:45 opeth kernel: esi: f742f520 edi: f7ea9140 ebp: e7304660 es p: ea08deb4 Jan 16 23:59:45 opeth kernel: ds: 0018 es: 0018 ss: 0018 Jan 16 23:59:45 opeth kernel: Process Eterm (pid: 4924, stackpage=3Dea08d000) Jan 16 23:59:45 opeth kernel: Stack: e8d92e00 c0179d4e e7304660 e8d92e00 fffffff 4 f7a7f840 ea08c000 e7304660=20 Jan 16 23:59:45 opeth kernel: f7ea914c c0287c80 f3b1b600 c0126938 f6fddb6 0 f3b1b600 4038dc00 00000000=20 Jan 16 23:59:45 opeth kernel: 00000246 00000000 f7a7f840 f7a7f8a8 f7a8362 0 00000246 c0149613 c200f288=20 Jan 16 23:59:45 opeth kernel: Call Trace: [devfs_lookup+526/600] [handle_mm_faul t+92/184] [d_alloc+27/376] [real_lookup+122/264] [link_path_walk+1431/2016]=20 Jan 16 23:59:45 opeth kernel: [path_walk+26/28] [__user_walk+53/80] [sys_stat 64+25/112] [sys_ioctl+490/497] [system_call+51/56]=20 Jan 16 23:59:45 opeth kernel:=20 Jan 16 23:59:45 opeth kernel: Code: 0f 0b f0 fe 0d a0 66 2d c0 0f 88 43 09 00 00 85 c9 74 12 8b=20 -- snip -- //this one occurred during boot -- snip -- Jan 17 00:07:47 opeth kernel: invalid operand: 0000 Jan 17 00:07:47 opeth kernel: CPU: 0 Jan 17 00:07:47 opeth kernel: EIP: 0010:[d_instantiate+17/68] Tainted: P=20 Jan 17 00:07:47 opeth kernel: EFLAGS: 00010287 Jan 17 00:07:47 opeth kernel: eax: 5a5a5a00 ebx: f7228540 ecx: f7215060 ed x: f7228570 Jan 17 00:07:47 opeth kernel: esi: f7215060 edi: f7228540 ebp: f7a810c0 es p: f7a41f18 Jan 17 00:07:47 opeth kernel: ds: 0018 es: 0018 ss: 0018 Jan 17 00:07:47 opeth kernel: Process devfsd (pid: 26, stackpage=3Df7a41000) Jan 17 00:07:47 opeth kernel: Stack: f7252940 c0179b13 f7228540 f7215060 f722854 0 00000000 f7a41fa4 f7a82a20=20 Jan 17 00:07:47 opeth kernel: c01409be f7228540 00000000 f7a41f74 c014118 1 f7a82a20 f7a41f74 00000000=20 Jan 17 00:07:47 opeth kernel: f7854000 00000000 f7a41fa4 00000009 0000000 9 f7854005 00000000 f7854004=20 Jan 17 00:07:47 opeth kernel: Call Trace: [devfs_d_revalidate_wait+231/276] [cac hed_lookup+46/84] [link_path_walk+1409/2016] [path_walk+26/28] [__user_walk+53/8 0]=20 Jan 17 00:07:47 opeth kernel: [sys_stat64+25/112] [sys_read+188/196] [system_ call+51/56]=20 Jan 17 00:07:47 opeth kernel:=20 Jan 17 00:07:47 opeth kernel: Code: 0f 0b f0 fe 0d a0 66 2d c0 0f 88 43 09 00 00 85 c9 74 12 8b -- snip -- Interestingly enough, I applied rml's preempt-kernel-rml-2.4.18-pre4-1, recompiled, rebooted, and have yet to see an oops, though I believe it's just dumb luck thus far. Any ideas? On Thu, Jan 17, 2002 at 09:12:29AM -0800, Lawrence Walton wrote: > I am not sure how to debug this but it apears that=20 > in 2.5.3-pre1 and in 2.5.2-dj1 DEVFS is not working. > It started by terminals hanging and not being able to > shutdown. > I went to /dev/ and did a ls, it compleatly hangs that > terminal and I cannot kill ls. > I have the devfsd version from debian 1.3.21 . --=20 Dan Chen crimsun@email.unc.edu GPG key: www.unc.edu/~crimsun/pubkey.gpg.asc --0F1p//8PRICkK4MW Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.6 (GNU/Linux) Comment: For info see http://www.gnupg.org iD8DBQE8RyBRMwVVFhIHlU4RAp+bAJwNAsdBGF5s73RQ0DugOXKVo5huQwCdEi3V QRLkQ2ehiLLpw9kup7tSIYs= =frfG -----END PGP SIGNATURE----- --0F1p//8PRICkK4MW-- - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/