8 messages, 2 authors, 2003-08-28 · open the first message on its own page
From: Giuliano Pochini <hidden>
Date: 2003-08-24 07:24:56
I'm having random crashes on a dualG4 windtunnel and v2.4.22p6. Is there any known issue ? -- Bye. Giuliano. ** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Date: 2003-08-24 08:46:29
On Sun, 2003-08-24 at 09:24, Giuliano Pochini wrote:
I'm having random crashes on a dualG4 windtunnel and v2.4.22p6. Is there any known issue ?
What do you mean by random crash ? Lockups ? Panics ? See anything in console or logs ? Is this new to this kernel ? Ben. ** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/
From: Giuliano Pochini <hidden>
Date: 2003-08-24 15:44:08
On Sun, 24 Aug 2003 10:46:29 +0200 Benjamin Herrenschmidt [off-list ref] wrote:
quoted
I'm having random crashes on a dualG4 windtunnel and v2.4.22p6. Is there any known issue ?What do you mean by random crash ? Lockups ? Panics ? See anything in console or logs ? Is this new to this kernel ?
Random... lockups, oopses, sig11... but nothing useful because is happens in random places. Ok, so the answer is no. Maybe the hw is faulty. It's the only kernel I used on this mac. -- Bye. Giuliano. ** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Date: 2003-08-24 15:50:17
On Sun, 2003-08-24 at 17:44, Giuliano Pochini wrote:
On Sun, 24 Aug 2003 10:46:29 +0200 Benjamin Herrenschmidt [off-list ref] wrote:quoted
quoted
I'm having random crashes on a dualG4 windtunnel and v2.4.22p6. Is there any known issue ?What do you mean by random crash ? Lockups ? Panics ? See anything in console or logs ? Is this new to this kernel ?Random... lockups, oopses, sig11... but nothing useful because is happens in random places. Ok, so the answer is no. Maybe the hw is faulty. It's the only kernel I used on this mac.
Strange. I haven't been reported such problems. Can you try an older kernel just in case ? Could also be bad ram... Ben. ** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/
From: Giuliano Pochini <hidden>
Date: 2003-08-27 20:06:27
On Sun, 24 Aug 2003 17:50:17 +0200 Benjamin Herrenschmidt [off-list ref] wrote:
quoted
Random... lockups, oopses, sig11... but nothing useful because is happens in random places. Ok, so the answer is no. Maybe the hw is faulty. It's the only kernel I used on this mac.Strange. I haven't been reported such problems. Can you try an older kernel just in case ? Could also be bad ram...
I tried 2.4.22 and I replaced the RAM. Nothing. Digging in the oops collection I found this one which doesn't look very nice: Jul 23 21:37:55 localhost kernel: Machine check in kernel mode. Jul 23 21:37:55 localhost kernel: Caused by (from SRR1=20009030): L1 Data Cache error I'll send the machine back for repair, altought I think they'll not even notice the problem because it happens sporadically :((( -- Bye. Giuliano. ** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Date: 2003-08-28 08:31:55
On Wed, 2003-08-27 at 22:06, Giuliano Pochini wrote:
On Sun, 24 Aug 2003 17:50:17 +0200 Benjamin Herrenschmidt [off-list ref] wrote:quoted
quoted
Random... lockups, oopses, sig11... but nothing useful because is happens in random places. Ok, so the answer is no. Maybe the hw is faulty. It's the only kernel I used on this mac.Strange. I haven't been reported such problems. Can you try an older kernel just in case ? Could also be bad ram...I tried 2.4.22 and I replaced the RAM. Nothing. Digging in the oops collection I found this one which doesn't look very nice: Jul 23 21:37:55 localhost kernel: Machine check in kernel mode. Jul 23 21:37:55 localhost kernel: Caused by (from SRR1=20009030): L1 Data Cache error I'll send the machine back for repair, altought I think they'll not even notice the problem because it happens sporadically :(((
Well... I'm not 100% sure the message is correct, though from what you say, it seems indeed there is a CPU fault... What CPU is this exactly ? (/proc/cpuinfo) Ben. ** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/
From: Giuliano Pochini <hidden>
Date: 2003-08-28 13:25:09
On 28-Aug-2003 Benjamin Herrenschmidt wrote:
quoted
quoted
Strange. I haven't been reported such problems. Can you try an older kernel just in case ? Could also be bad ram...I tried 2.4.22 and I replaced the RAM. Nothing. Digging in the oops collection I found this one which doesn't look very nice: Jul 23 21:37:55 localhost kernel: Machine check in kernel mode. Jul 23 21:37:55 localhost kernel: Caused by (from SRR1=20009030): L1 Data Cache error I'll send the machine back for repair, altought I think they'll not even notice the problem because it happens sporadically :(((Well... I'm not 100% sure the message is correct, though from what you say, it seems indeed there is a CPU fault...
Yes, but it happened only once. All the others were "normal" segfaults, in both userspace and kernel space and hard lockups.
What CPU is this exactly ? (/proc/cpuinfo)
processor : 0
cpu : 7455, altivec supported
clock : 1249MHz
revision : 3.3 (pvr 8001 0303)
bogomips : 1248.46
processor : 1
cpu : 7455, altivec supported
clock : 1249MHz
revision : 3.3 (pvr 8001 0303)
bogomips : 1248.46
total bogomips : 2496.92
machine : PowerMac3,6
motherboard : PowerMac3,6 MacRISC3 Power Macintosh
detected as : 129 (PowerMac G4 Windtunnel)
pmac flags : 00000000
L2 cache : 256K unified
memory : 512MB
pmac-generation : NewWorld
I'm reading the latest 7455 errata
http://e-www.motorola.com/files/32bit/doc/errata/MPC7455CE.pdf
but I don't see anything that can cause L1 errors.
Unrelated thing: tlbli instruction can cause problems on 7455 (bug.20).
arch/ppc/kernel/head.S does not use the suggested workaround.
Bye.
Giuliano.
** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Date: 2003-08-28 13:47:06
On Thu, 2003-08-28 at 15:25, Giuliano Pochini wrote:
On 28-Aug-2003 Benjamin Herrenschmidt wrote:quoted
quoted
quoted
Strange. I haven't been reported such problems. Can you try an older kernel just in case ? Could also be bad ram...I tried 2.4.22 and I replaced the RAM. Nothing. Digging in the oops collection I found this one which doesn't look very nice: Jul 23 21:37:55 localhost kernel: Machine check in kernel mode. Jul 23 21:37:55 localhost kernel: Caused by (from SRR1=20009030): L1 Data Cache error I'll send the machine back for repair, altought I think they'll not even notice the problem because it happens sporadically :(((Well... I'm not 100% sure the message is correct, though from what you say, it seems indeed there is a CPU fault...Yes, but it happened only once. All the others were "normal" segfaults, in both userspace and kernel space and hard lockups.
Did you try a few things like running single CPU and not enabling IRQ distribution on all CPUs ?
.../... Unrelated thing: tlbli instruction can cause problems on 7455 (bug.20). arch/ppc/kernel/head.S does not use the suggested workaround.
We don't use tlbli on 745x, only on 603s. Ben. ** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/