Report forwarded to debian-bugs-dist@lists.debian.org:
Bug#7310.   debian-bugs-dist@lists.debian.org  Sorry, this message was lost when this bug report was restored from a backup.   Acknowledgement sent to Phil Karn <karn@qualcomm.com>:
New bug report received and forwarded.

Your message didn't have a Package: line at the start (in the pseudo-header following the real mail header), or didn't have a psuedo-header at all.

This makes it much harder for us to categorise and deal with your problem report; please ensure that you say which package(s) and version(s) the problem is with next time. Some time in the future the problem reports system may start rejecting such messages.

  Phil Karn <karn@qualcomm.com>  Sorry, this message was lost when this bug report was restored from a backup.   Received: (at submit) by bugs.debian.org; 11 Feb 1997 07:10:39 +0000 Received: (qmail 5311 invoked from network); 11 Feb 1997 07:10:34 -0000 Received: from servo.qualcomm.com (129.46.101.170) by master.debian.org with SMTP; 11 Feb 1997 07:10:33 -0000 Received: (from karn@localhost) by servo.qualcomm.com (8.8.5/1.4/8.7.2/1.9) id XAA03556; Mon, 10 Feb 1997 23:04:53 -0800 (PST) Date: Mon, 10 Feb 1997 23:04:53 -0800 (PST) From: Phil Karn Message-Id: <199702110704.XAA03556@servo.qualcomm.com> To: submit@bugs.debian.org Cc: karn@qualcomm.com, bdale@gag.com Subject: APM kernel problems on HP 4000C laptop The 2.0.27 kernel, when compiled with APM BIOS support enabled, causes processes to randomly lose on a HP Omnibook 4000CT laptop. The APM settings in the kernel configuration are as follows: [*] Advanced Power Management BIOS support [ ] Ignore USER SUSPEND [ ] Enable PM at boot time [*] Make CPU Idle calls when idle [*] Enable console blanking using APM [*] Power off on shutdown Booting this kernel consistently produces a kernel "oops" in the log as follows. (I booted this kernel twice and got *exactly* the same message each time). Unable to handle kernel NULL pointer dereference at virtual address c0000eb0 current->tss.cr3 = 00a1d000, %cr3 = 00a1d000 *pde = 00102067 *pte = 00000027 Oops: 0002 CPU: 0 EIP: 2048:[<00000317>] EFLAGS: 00010046 eax: 0000530a ebx: 000000ff ecx: 00000003 edx: 0000ff03 esi: 0023103d edi: 009f0014 ebp: ffff0eb2 esp: 00a20eac ds: 2050 es: 0000 fs: 0000 gs: 0000 ss: 0018 Process apmd (pid: 141, process nr: 10, stackpage=00a20000) Stack: 0000036f 0014d670 0014103d 00ff0003 03e6530a 00ff0003 ffff530a 042700ff 530a0173 00bb0097 0722000c 0525103d 0540f000 0000ffff 204004c6 0000530a 001923bb 00000010 00000246 0000002b 00a2002b 00000018 00000018 ffffffff Call Trace: [<0014d670>] [<0014103d>] [<001923bb>] [<00193068>] [<0016e545>] [<0012343a>] [<0010ab25>] Code: c7 46 fe 00 10 c7 46 fc 00 01 eb 0a c7 46 fe 00 20 c7 46 fc Note that the offending process is the APM user space daemon. The kernel continues to run, but processes randomly abort with similar "oops" messages. This is most likely to happen when a process performs heavy disk I/O. For example, I can consistently cause an abort with the command "tar cvf /dev/null /": Unable to handle kernel paging request at virtual address c2000000 current->tss.cr3 = 00bad000, %cr3 = 00bad000 *pde = 00000000 Oops: 0000 CPU: 0 EIP: 0010:[<00125310>] EFLAGS: 00010206 eax: 02000000 ebx: 00070302 ecx: 00000400 edx: 00001bbf esi: 00061b77 edi: 00000302 ebp: 00061875 esp: 00b70e74 ds: 0018 es: 0018 fs: 002b gs: 002b ss: 0018 Process tar (pid: 320, process nr: 10, stackpage=00b70000) Stack: 00070f68 00061875 00000302 00000001 007ef8b8 00126b4d 00000302 00061875 00000400 00b70f20 0000000c 00000000 007ef8b8 00061875 00000302 00000100 00070f24 00b70302 00000000 00070f24 0006f50c 0006f4c8 00b70f1c 0000000b Call Trace: [<00126b4d>] [<00126fc3>] [<0011c9a5>] [<0011ca7c>] [<0011ce10>] [<0012343a>] [<0010ab25>] Code: 39 28 75 2c 66 39 58 04 75 26 8b 4c 24 20 39 48 20 74 26 57 Recompiling the kernel with APM support disabled produces a stable kernel. I wonder if this bug is related to the (unresolved) Debian bug report #3320? Phil   Information forwarded to debian-bugs-dist@lists.debian.org:
Bug#7310.   debian-bugs-dist@lists.debian.org  Sorry, this message was lost when this bug report was restored from a backup.   Acknowledgement sent to Rob Browning <osiris@cs.utexas.edu>:
Extra info received and forwarded to list.   Rob Browning <osiris@cs.utexas.edu>  Sorry, this message was lost when this bug report was restored from a backup.   Received: (at 7310) by bugs.debian.org; 11 Feb 1997 07:36:48 +0000 Received: (qmail 12665 invoked from network); 11 Feb 1997 07:36:43 -0000 Received: from slip-47-1.ots.utexas.edu (HELO nevermore.csres.utexas.edu) (@128.83.113.33) by master.debian.org with SMTP; 11 Feb 1997 07:36:42 -0000 Received: (from osiris@localhost) by nevermore.csres.utexas.edu (8.8.5/8.8.5) id BAA19392; Tue, 11 Feb 1997 01:31:07 -0600 Sender: osiris@janus.csres.utexas.edu To: Phil Karn Cc: 7310@bugs.debian.org Subject: Re: Bug#7310: APM kernel problems on HP 4000C laptop References: <199702110704.XAA03556@servo.qualcomm.com> From: Rob Browning Date: 11 Feb 1997 01:31:06 -0600 In-Reply-To: Phil Karn's message of Mon, 10 Feb 1997 23:04:53 -0800 (PST) Message-ID: <87914vre85.fsf@nevermore.csres.utexas.edu> Lines: 14 X-Mailer: Gnus v5.4.10/Emacs 19.34 Phil Karn writes: > The 2.0.27 kernel, when compiled with APM BIOS support enabled, causes > processes to randomly lose on a HP Omnibook 4000CT laptop. I would suggest that you try the 2.1.17 kernel. I had some trouble with 2.0.27 on my laptop, and upgrading fixed it. Note that this upgrade can be a little tricky if you're using pcmcia. You'll have to recompile the kernel, and the pcmcia-source. -- Rob   Bug assigned to package `kernel-image-2.0.27'. Request was from Sven Rudolph <sr1@os.inf.tu-dresden.de> to control@bugs.debian.org.   Sven Rudolph <sr1@os.inf.tu-dresden.de>  Sorry, this message was lost when this bug report was restored from a backup.   Bug reassigned from package `kernel-image-2.0.27' to `kernel'. Request was from Sven Rudolph <sr1@os.inf.tu-dresden.de> to control@bugs.debian.org.   Sven Rudolph <sr1@os.inf.tu-dresden.de>  Sorry, this message was lost when this bug report was restored from a backup.   Reply sent to bdale@gag.com, 7310-forwarded@bugs.debian.org, karn@qualcomm.com:
You have marked bug as forwarded.   bdale@gag.com7310-forwarded@bugs.debian.orgkarn@qualcomm.com  Sorry, this message was lost when this bug report was restored from a backup.   Received: (at 7310-forwarded) by bugs.debian.org; 14 Jun 1997 10:41:44 +0000 Received: (qmail 6233 invoked from network); 14 Jun 1997 10:41:43 -0000 Received: from cartridge.i-connect.net (qmailr@206.190.143.12) by master.debian.org with SMTP; 14 Jun 1997 10:41:43 -0000 Received: (qmail 12051 invoked from network); 13 Jun 1997 06:15:00 -0000 Received: from greathan.apana.org.au (herbert@203.14.152.113) by cartridge.i-connect.net with SMTP; 13 Jun 1997 06:14:59 -0000 Received: (from herbert@localhost) by greathan.apana.org.au (8.8.5/8.8.5) id QAA01900; Fri, 13 Jun 1997 16:01:26 +1000 From: Herbert Xu Message-Id: <199706130601.QAA01900@greathan.apana.org.au> Subject: Re: APM kernel problems on HP 4000C laptop (fwd) To: linux-kernel@vger.rutgers.edu Date: Fri, 13 Jun 1997 16:01:25 +1000 (EST) Cc: 7310-forwarded@bugs.debian.org Reply-To: bdale@gag.com, 7310-forwarded@bugs.debian.org, karn@qualcomm.com X-Mailer: ELM [version 2.4ME+ PL31 (25)] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit This was observed with a 2.0.30 kernel. ----- Forwarded message from Phil Karn ----- From karn@qualcomm.com Fri Jun 13 15:41:39 1997 Date: Thu, 12 Jun 1997 22:41:15 -0700 (PDT) Message-Id: <199706130541.WAA10508@servo.qualcomm.com> From: Phil Karn To: herbert@greathan.apana.org.au CC: bdale@gag.com, 7310@bugs.debian.org, karn@qualcomm.com In-reply-to: <199706130434.OAA00757@greathan.apana.org.au> (message from Herbert Xu on Fri, 13 Jun 1997 14:34:47 +1000 (EST)) Subject: Re: APM kernel problems on HP 4000C laptop I have since given my HP Omnibook 4000 to my sister and replaced it with an Omnibook 5500CT. It seems somewhat better behaved, but I still have occasional problems. Usually, but not always, after I've invoked the APM suspend function. Once in a while I'll see the kernel message free_one_pmd: bad directory entry 00400000 and at that point the kernel becomes completely unusable; any attempt to execute a command results in an immediate segmentation fault. A reboot is required to get things going again. This afternoon this happened during the reboot fsck, which made things pretty dicey. Eventually I was able to nurse it through the fsck and get things going again. Phil ----- End of forwarded message from Phil Karn ----- -- Debian GNU/Linux 1.3 is out! ( http://www.debian.org/ ) Email: Herbert Xu ~{PmV>HI~} Home Page: http://greathan.apana.org.au/~herbert/ PGP Key: http://greathan.apana.org.au/~herbert/pubkey.txt   Received: (at 7310-forwarded) by bugs.debian.org; 14 Jun 1997 11:45:56 +0000 Received: (qmail 10738 invoked from network); 14 Jun 1997 11:45:54 -0000 Received: from master.debian.org (HELO submailer.bugs.debian.org) (iwj@206.190.143.161) by master.debian.org with SMTP; 14 Jun 1997 11:45:54 -0000 Received: by submailer.bugs.debian.org id m0wcqOW-000GP2C (Debian /\oo/\ Smail3.1.29.1 #29.35); Sat, 14 Jun 97 03:49 PDT Date: Sat, 14 Jun 97 03:49 PDT From: owner@bugs.debian.org (Ian Jackson) To: bdale@gag.com, 7310-forwarded@bugs.debian.org, karn@qualcomm.com Cc: Herbert Xu Subject: Bug#7310: marked as forwarded (was: APM kernel problems on HP 4000C laptop) Message-ID: In-Reply-To: <199706130601.QAA01900@greathan.apana.org.au> References: <199706130601.QAA01900@greathan.apana.org.au> <199702110704.XAA03556@servo.qualcomm.com> X-Debian-PR-Message: forwarded 7310 Your message dated Fri, 13 Jun 1997 16:01:25 +1000 (EST) with message-id <199706130601.QAA01900@greathan.apana.org.au> and subject line APM kernel problems on HP 4000C laptop (fwd) has caused the Debian bug report #7310, regarding APM kernel problems on HP 4000C laptop to be marked as having been forwarded to the upstream software author(s) linux-kernel@vger.rutgers.edu. (NB: If you are a system administrator and have no idea what I'm talking about this indicates a serious mail system misconfiguration somewhere. Please contact me immediately.) Ian Jackson (maintainer, Debian bug tracking system) Received: (at submit) by bugs.debian.org; 11 Feb 1997 07:10:39 +0000 Received: (qmail 5311 invoked from network); 11 Feb 1997 07:10:34 -0000 Received: from servo.qualcomm.com (129.46.101.170) by master.debian.org with SMTP; 11 Feb 1997 07:10:33 -0000 Received: (from karn@localhost) by servo.qualcomm.com (8.8.5/1.4/8.7.2/1.9) id XAA03556; Mon, 10 Feb 1997 23:04:53 -0800 (PST) Date: Mon, 10 Feb 1997 23:04:53 -0800 (PST) From: Phil Karn Message-Id: <199702110704.XAA03556@servo.qualcomm.com> To: submit@bugs.debian.org Cc: karn@qualcomm.com, bdale@gag.com Subject: APM kernel problems on HP 4000C laptop The 2.0.27 kernel, when compiled with APM BIOS support enabled, causes processes to randomly lose on a HP Omnibook 4000CT laptop. The APM settings in the kernel configuration are as follows: [*] Advanced Power Management BIOS support [ ] Ignore USER SUSPEND [ ] Enable PM at boot time [*] Make CPU Idle calls when idle [*] Enable console blanking using APM [*] Power off on shutdown Booting this kernel consistently produces a kernel "oops" in the log as follows. (I booted this kernel twice and got *exactly* the same message each time). Unable to handle kernel NULL pointer dereference at virtual address c0000eb0 current->tss.cr3 = 00a1d000, %cr3 = 00a1d000 *pde = 00102067 *pte = 00000027 Oops: 0002 CPU: 0 EIP: 2048:[<00000317>] EFLAGS: 00010046 eax: 0000530a ebx: 000000ff ecx: 00000003 edx: 0000ff03 esi: 0023103d edi: 009f0014 ebp: ffff0eb2 esp: 00a20eac ds: 2050 es: 0000 fs: 0000 gs: 0000 ss: 0018 Process apmd (pid: 141, process nr: 10, stackpage=00a20000) Stack: 0000036f 0014d670 0014103d 00ff0003 03e6530a 00ff0003 ffff530a 042700ff 530a0173 00bb0097 0722000c 0525103d 0540f000 0000ffff 204004c6 0000530a 001923bb 00000010 00000246 0000002b 00a2002b 00000018 00000018 ffffffff Call Trace: [<0014d670>] [<0014103d>] [<001923bb>] [<00193068>] [<0016e545>] [<0012343a>] [<0010ab25>] Code: c7 46 fe 00 10 c7 46 fc 00 01 eb 0a c7 46 fe 00 20 c7 46 fc Note that the offending process is the APM user space daemon. The kernel continues to run, but processes randomly abort with similar "oops" messages. This is most likely to happen when a process performs heavy disk I/O. For example, I can consistently cause an abort with the command "tar cvf /dev/null /": Unable to handle kernel paging request at virtual address c2000000 current->tss.cr3 = 00bad000, %cr3 = 00bad000 *pde = 00000000 Oops: 0000 CPU: 0 EIP: 0010:[<00125310>] EFLAGS: 00010206 eax: 02000000 ebx: 00070302 ecx: 00000400 edx: 00001bbf esi: 00061b77 edi: 00000302 ebp: 00061875 esp: 00b70e74 ds: 0018 es: 0018 fs: 002b gs: 002b ss: 0018 Process tar (pid: 320, process nr: 10, stackpage=00b70000) Stack: 00070f68 00061875 00000302 00000001 007ef8b8 00126b4d 00000302 00061875 00000400 00b70f20 0000000c 00000000 007ef8b8 00061875 00000302 00000100 00070f24 00b70302 00000000 00070f24 0006f50c 0006f4c8 00b70f1c 0000000b Call Trace: [<00126b4d>] [<00126fc3>] [<0011c9a5>] [<0011ca7c>] [<0011ce10>] [<0012343a>] [<0010ab25>] Code: 39 28 75 2c 66 39 58 04 75 26 8b 4c 24 20 39 48 20 74 26 57 Recompiling the kernel with APM support disabled produces a stable kernel. I wonder if this bug is related to the (unresolved) Debian bug report #3320? Phil   Information forwarded to debian-bugs-dist@lists.debian.org, Herbert Xu <herbert@debian.org>:
Bug#7310; Package kernel.   debian-bugs-dist@lists.debian.orgHerbert Xu <herbert@debian.org>  Sorry, this message was lost when this bug report was restored from a backup.   Acknowledgement sent to Herbert Xu <herbert@greathan.apana.org.au>:
Extra info received and forwarded to list. Copy sent to Herbert Xu <herbert@debian.org>.   Herbert Xu <herbert@greathan.apana.org.au>  Sorry, this message was lost when this bug report was restored from a backup.   Received: (at 7310) by bugs.debian.org; 14 Jun 1997 12:55:44 +0000 Received: (qmail 13407 invoked from network); 14 Jun 1997 12:55:41 -0000 Received: from cartridge.i-connect.net (qmailr@206.190.143.12) by master.debian.org with SMTP; 14 Jun 1997 12:55:41 -0000 Received: (qmail 11047 invoked from network); 13 Jun 1997 04:49:04 -0000 Received: from greathan.apana.org.au (herbert@203.14.152.113) by cartridge.i-connect.net with SMTP; 13 Jun 1997 04:49:02 -0000 Received: (from herbert@localhost) by greathan.apana.org.au (8.8.5/8.8.5) id OAA00757; Fri, 13 Jun 1997 14:34:48 +1000 From: Herbert Xu Message-Id: <199706130434.OAA00757@greathan.apana.org.au> Subject: Re: APM kernel problems on HP 4000C laptop In-Reply-To: <199702110704.XAA03556@servo.qualcomm.com> from Phil Karn at "Feb 10, 97 11:04:53 pm" To: karn@qualcomm.com (Phil Karn) Date: Fri, 13 Jun 1997 14:34:47 +1000 (EST) Cc: bdale@gag.com, 7310@bugs.debian.org X-Mailer: ELM [version 2.4ME+ PL31 (25)] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Phil Karn wrote: > > The 2.0.27 kernel, when compiled with APM BIOS support enabled, causes > processes to randomly lose on a HP Omnibook 4000CT laptop. Can you please reproduce this with 2.0.30? Thanks. -- Debian GNU/Linux 1.3 is out! ( http://www.debian.org/ ) Email: Herbert Xu ~{PmV>HI~} Home Page: http://greathan.apana.org.au/~herbert/ PGP Key: http://greathan.apana.org.au/~herbert/pubkey.txt   Information forwarded to debian-bugs-dist@lists.debian.org, Herbert Xu <herbert@debian.org>:
Bug#7310; Package kernel.   debian-bugs-dist@lists.debian.orgHerbert Xu <herbert@debian.org>  Sorry, this message was lost when this bug report was restored from a backup.   Acknowledgement sent to Phil Karn <karn@qualcomm.com>:
Extra info received and forwarded to list. Copy sent to Herbert Xu <herbert@debian.org>.   Phil Karn <karn@qualcomm.com>  Sorry, this message was lost when this bug report was restored from a backup.   Received: (at 7310) by bugs.debian.org; 14 Jun 1997 13:50:11 +0000 Received: (qmail 15377 invoked from network); 14 Jun 1997 13:50:10 -0000 Received: from cartridge.i-connect.net (qmailr@206.190.143.12) by master.debian.org with SMTP; 14 Jun 1997 13:50:10 -0000 Received: (qmail 11704 invoked from network); 13 Jun 1997 05:43:33 -0000 Received: from servo.qualcomm.com (129.46.101.170) by cartridge.i-connect.net with SMTP; 13 Jun 1997 05:43:33 -0000 Received: (from karn@localhost) by servo.qualcomm.com (8.8.5/1.4/8.7.2/1.9) id WAA10508; Thu, 12 Jun 1997 22:41:15 -0700 (PDT) Date: Thu, 12 Jun 1997 22:41:15 -0700 (PDT) Message-Id: <199706130541.WAA10508@servo.qualcomm.com> From: Phil Karn To: herbert@greathan.apana.org.au CC: bdale@gag.com, 7310@bugs.debian.org, karn@qualcomm.com In-reply-to: <199706130434.OAA00757@greathan.apana.org.au> (message from Herbert Xu on Fri, 13 Jun 1997 14:34:47 +1000 (EST)) Subject: Re: APM kernel problems on HP 4000C laptop I have since given my HP Omnibook 4000 to my sister and replaced it with an Omnibook 5500CT. It seems somewhat better behaved, but I still have occasional problems. Usually, but not always, after I've invoked the APM suspend function. Once in a while I'll see the kernel message free_one_pmd: bad directory entry 00400000 and at that point the kernel becomes completely unusable; any attempt to execute a command results in an immediate segmentation fault. A reboot is required to get things going again. This afternoon this happened during the reboot fsck, which made things pretty dicey. Eventually I was able to nurse it through the fsck and get things going again. Phil   Information forwarded to debian-bugs-dist@lists.debian.org, Herbert Xu <herbert@debian.org>:
Bug#7310; Package kernel.   debian-bugs-dist@lists.debian.orgHerbert Xu <herbert@debian.org>  Sorry, this message was lost when this bug report was restored from a backup.   Acknowledgement sent to Phil Karn <karn@qualcomm.com>:
Extra info received and forwarded to list. Copy sent to Herbert Xu <herbert@debian.org>.   Phil Karn <karn@qualcomm.com>  Sorry, this message was lost when this bug report was restored from a backup.   Received: (at 7310) by bugs.debian.org; 14 Jun 1997 13:50:16 +0000 Received: (qmail 15391 invoked from network); 14 Jun 1997 13:50:16 -0000 Received: from cartridge.i-connect.net (qmailr@206.190.143.12) by master.debian.org with SMTP; 14 Jun 1997 13:50:16 -0000 Received: (qmail 11707 invoked from network); 13 Jun 1997 05:43:38 -0000 Received: from servo.qualcomm.com (129.46.101.170) by cartridge.i-connect.net with SMTP; 13 Jun 1997 05:43:37 -0000 Received: (from karn@localhost) by servo.qualcomm.com (8.8.5/1.4/8.7.2/1.9) id WAA10511; Thu, 12 Jun 1997 22:41:33 -0700 (PDT) Date: Thu, 12 Jun 1997 22:41:33 -0700 (PDT) Message-Id: <199706130541.WAA10511@servo.qualcomm.com> From: Phil Karn To: herbert@greathan.apana.org.au CC: bdale@gag.com, 7310@bugs.debian.org In-reply-to: <199706130434.OAA00757@greathan.apana.org.au> (message from Herbert Xu on Fri, 13 Jun 1997 14:34:47 +1000 (EST)) Subject: Re: APM kernel problems on HP 4000C laptop By the way, all this work with the 5500CT has been with 2.0.30. Phil   Information forwarded to debian-bugs-dist@lists.debian.org, Herbert Xu <herbert@debian.org>:
Bug#7310; Package kernel.   debian-bugs-dist@lists.debian.orgHerbert Xu <herbert@debian.org>  Sorry, this message was lost when this bug report was restored from a backup.   Acknowledgement sent to Phil Karn <karn@qualcomm.com>:
Extra info received and forwarded to list. Copy sent to Herbert Xu <herbert@debian.org>.   Phil Karn <karn@qualcomm.com>  Sorry, this message was lost when this bug report was restored from a backup.   Received: (at 7310) by bugs.debian.org; 21 Jun 1997 00:03:32 +0000 Received: (qmail 12812 invoked from network); 21 Jun 1997 00:03:31 -0000 Received: from servo.qualcomm.com (129.46.101.170) by master.debian.org with SMTP; 21 Jun 1997 00:03:31 -0000 Received: (from karn@localhost) by servo.qualcomm.com (8.8.5/1.4/8.7.2/1.9) id RAA21889; Fri, 20 Jun 1997 17:03:22 -0700 (PDT) Date: Fri, 20 Jun 1997 17:03:22 -0700 (PDT) Message-Id: <199706210003.RAA21889@servo.qualcomm.com> From: Phil Karn To: 7310@bugs.debian.org CC: herbert@greathan.apana.org.au, bdale@gag.com, karn@qualcomm.com In-reply-to: <199706130541.WAA10508@servo.qualcomm.com> (karn) Subject: Re: APM kernel problems on HP 4000C laptop A followup on this problem: >Once in a while I'll see the kernel message >free_one_pmd: bad directory entry 00400000 >and at that point the kernel becomes completely unusable; any attempt >to execute a command results in an immediate segmentation fault. A This seems to have been a hardware problem. Last week I exchanged my HP5500CT, first for a loaner machine and then for a brand new one, keeping the old hard drive each time. The problem has not recurred since. The problem seemed to be both intermittent and temperature-related. Recently I had been running Rocke Verser's DES Challenge code on this machine. This may have overstressed it thermally. Like most laptops, this one has no fan to keep it cool, and like all CMOS CPUs the P133 draws more power when running than when halted. Phil   Reply sent to Herbert Xu <herbert@greathan.apana.org.au>:
You have taken responsibility.   Herbert Xu <herbert@greathan.apana.org.au>  Sorry, this message was lost when this bug report was restored from a backup.   Done: Herbert Xu <herbert@greathan.apana.org.au>; Maintainer for kernel is Herbert Xu <herbert@debian.org>.

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----- Forwarded message from Phil Karn -----

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In-reply-to: <199706130541.WAA10508@servo.qualcomm.com> (karn)

A followup on this problem:

>Once in a while I'll see the kernel message

>free_one_pmd: bad directory entry 00400000
>and at that point the kernel becomes completely unusable; any attempt
>to execute a command results in an immediate segmentation fault. A

This seems to have been a hardware problem. Last week I exchanged my
HP5500CT, first for a loaner machine and then for a brand new one,
keeping the old hard drive each time. The problem has not recurred
since.

The problem seemed to be both intermittent and temperature-related.
Recently I had been running Rocke Verser's DES Challenge code on this
machine. This may have overstressed it thermally.  Like most laptops,
this one has no fan to keep it cool, and like all CMOS CPUs the P133
draws more power when running than when halted.

Phil

----- End of forwarded message from Phil Karn -----

-- 
Debian GNU/Linux 1.3 is out! ( http://www.debian.org/ )
Email:  Herbert Xu ~{PmV>HI~} <herbert@greathan.apana.org.au>
Home Page: http://greathan.apana.org.au/~herbert/
PGP Key: http://greathan.apana.org.au/~herbert/pubkey.txt
Notification sent to Phil Karn <karn@qualcomm.com>:
Bug acknowledged by developer.   Phil Karn <karn@qualcomm.com>  Sorry, this message was lost when this bug report was restored from a backup.