Re: CPU error codes
> Really? I thought it could be because of RAM. Here's the story: RAM talks to the chipset so I dont think it could (unless it confused the chipset) > CPU 1: Machine Check Exception: 0004 > Bank 4: b2040151<0>Kernel panic: CPU context corrupt Ok that decodes as: Status valid Uncorrect Error Error Enabled Processor Context Corrupt Memory Heirarchy Error Instruction Fetch L1 cache More than that I can't really say. Power and heat problems can certainly trigger MCE's. I don't know if I/O devices can influence them. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] Please read the FAQ at http://www.tux.org/lkml/
Re: CPU error codes
Really? I thought it could be because of RAM. Here's the story: RAM talks to the chipset so I dont think it could (unless it confused the chipset) CPU 1: Machine Check Exception: 0004 Bank 4: b20401510Kernel panic: CPU context corrupt Ok that decodes as: Status valid Uncorrect Error Error Enabled Processor Context Corrupt Memory Heirarchy Error Instruction Fetch L1 cache More than that I can't really say. Power and heat problems can certainly trigger MCE's. I don't know if I/O devices can influence them. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] Please read the FAQ at http://www.tux.org/lkml/
Re: CPU error codes
Followup to: <[EMAIL PROTECTED]> By author:Carlos Carvalho <[EMAIL PROTECTED]> In newsgroup: linux.dev.kernel > > Really? I thought it could be because of RAM. Here's the story: > > The kernel is 2.2.18pre24. > > I'm having VERY frequent of this (sometimes once a day, sometimes once > a week, sometimes twice a day, on a much used machine) > > CPU 1: Machine Check Exception: 0004 > Bank 4: b2040151<0>Kernel panic: CPU context corrupt > > CPU 0: Machine Check Exception: 0004 > Bank 4: b2040151<0>Kernel panic: CPU context corrupt > > CPU 0: Machine Check Exception: 0004 > Bank 4: b2040151<0>Kernel panic: CPU context corrupt > > This is on an ASUS P2B-DS with two PIII 700MHz and 100MHz FSB, 1GB of > RAM. The mce happens with both processors (the above is just part of > it). > > I've already changed the motherboard and processors, and it continued. > Then I changed the memory, and it continues. I also changed the > power supply just in case, to no avail... > > It happens with PC100 and PC133 memory. I increased the memory latency > (the SPD says it's cl2, I put it 3T and 10T DRAM) but the problem > persists. > > Since I changed the main board and processor, I think the most likely > cause is ram. It seems the x86 can access ram directly, so if there's > a NMI there what will happen? > Much more likely is that your CPU is bad, or overclocked. -hpa -- <[EMAIL PROTECTED]> at work, <[EMAIL PROTECTED]> in private! "Unix gives you enough rope to shoot yourself in the foot." http://www.zytor.com/~hpa/puzzle.txt - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] Please read the FAQ at http://www.tux.org/lkml/
Re: CPU error codes
Alan Cox ([EMAIL PROTECTED]) wrote on 31 January 2001 15:23: >> > In the intel databook. Generally an MCE indicates hardware/power/cooling >> > issues >> >> Doesn't an MCE also cover some hardware memory problems - parity/ECC >> issues etc? > >Parity/ECC on main memory is reported by the chipset and needs seperate >drivers or apps to handle this Really? I thought it could be because of RAM. Here's the story: The kernel is 2.2.18pre24. I'm having VERY frequent of this (sometimes once a day, sometimes once a week, sometimes twice a day, on a much used machine) CPU 1: Machine Check Exception: 0004 Bank 4: b2040151<0>Kernel panic: CPU context corrupt CPU 0: Machine Check Exception: 0004 Bank 4: b2040151<0>Kernel panic: CPU context corrupt CPU 0: Machine Check Exception: 0004 Bank 4: b2040151<0>Kernel panic: CPU context corrupt This is on an ASUS P2B-DS with two PIII 700MHz and 100MHz FSB, 1GB of RAM. The mce happens with both processors (the above is just part of it). I've already changed the motherboard and processors, and it continued. Then I changed the memory, and it continues. I also changed the power supply just in case, to no avail... It happens with PC100 and PC133 memory. I increased the memory latency (the SPD says it's cl2, I put it 3T and 10T DRAM) but the problem persists. Since I changed the main board and processor, I think the most likely cause is ram. It seems the x86 can access ram directly, so if there's a NMI there what will happen? This is happening on a CRITICAL machine, so any help will be much appreciated. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] Please read the FAQ at http://www.tux.org/lkml/
Re: CPU error codes
Alan Cox ([EMAIL PROTECTED]) wrote on 31 January 2001 15:23: In the intel databook. Generally an MCE indicates hardware/power/cooling issues Doesn't an MCE also cover some hardware memory problems - parity/ECC issues etc? Parity/ECC on main memory is reported by the chipset and needs seperate drivers or apps to handle this Really? I thought it could be because of RAM. Here's the story: The kernel is 2.2.18pre24. I'm having VERY frequent of this (sometimes once a day, sometimes once a week, sometimes twice a day, on a much used machine) CPU 1: Machine Check Exception: 0004 Bank 4: b20401510Kernel panic: CPU context corrupt CPU 0: Machine Check Exception: 0004 Bank 4: b20401510Kernel panic: CPU context corrupt CPU 0: Machine Check Exception: 0004 Bank 4: b20401510Kernel panic: CPU context corrupt This is on an ASUS P2B-DS with two PIII 700MHz and 100MHz FSB, 1GB of RAM. The mce happens with both processors (the above is just part of it). I've already changed the motherboard and processors, and it continued. Then I changed the memory, and it continues. I also changed the power supply just in case, to no avail... It happens with PC100 and PC133 memory. I increased the memory latency (the SPD says it's cl2, I put it 3T and 10T DRAM) but the problem persists. Since I changed the main board and processor, I think the most likely cause is ram. It seems the x86 can access ram directly, so if there's a NMI there what will happen? This is happening on a CRITICAL machine, so any help will be much appreciated. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] Please read the FAQ at http://www.tux.org/lkml/
Re: CPU error codes
Followup to: [EMAIL PROTECTED] By author:Carlos Carvalho [EMAIL PROTECTED] In newsgroup: linux.dev.kernel Really? I thought it could be because of RAM. Here's the story: The kernel is 2.2.18pre24. I'm having VERY frequent of this (sometimes once a day, sometimes once a week, sometimes twice a day, on a much used machine) CPU 1: Machine Check Exception: 0004 Bank 4: b20401510Kernel panic: CPU context corrupt CPU 0: Machine Check Exception: 0004 Bank 4: b20401510Kernel panic: CPU context corrupt CPU 0: Machine Check Exception: 0004 Bank 4: b20401510Kernel panic: CPU context corrupt This is on an ASUS P2B-DS with two PIII 700MHz and 100MHz FSB, 1GB of RAM. The mce happens with both processors (the above is just part of it). I've already changed the motherboard and processors, and it continued. Then I changed the memory, and it continues. I also changed the power supply just in case, to no avail... It happens with PC100 and PC133 memory. I increased the memory latency (the SPD says it's cl2, I put it 3T and 10T DRAM) but the problem persists. Since I changed the main board and processor, I think the most likely cause is ram. It seems the x86 can access ram directly, so if there's a NMI there what will happen? Much more likely is that your CPU is bad, or overclocked. -hpa -- [EMAIL PROTECTED] at work, [EMAIL PROTECTED] in private! "Unix gives you enough rope to shoot yourself in the foot." http://www.zytor.com/~hpa/puzzle.txt - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] Please read the FAQ at http://www.tux.org/lkml/
Re: CPU error codes
On Wed, 31 Jan 2001, James Sutherland wrote: > On Wed, 31 Jan 2001, Alan Cox wrote: > > Parity/ECC on main memory is reported by the chipset and needs seperate > > drivers or apps to handle this > Yes - MCE only covers errors in the CPU's cache, IIRC? (Is there still an > NMI on main memory parity errors, or has this changed on modern > chipsets? Presumably ECC is handled differently, being recoverable??) You can program the northbridge to generate NMI or not, on ECC errors. Most chipsets still need to scrub memory after an error to reset ECC bits. -Dan - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] Please read the FAQ at http://www.tux.org/lkml/
Re: CPU error codes
On Wed, 31 Jan 2001, Alan Cox wrote: > > > In the intel databook. Generally an MCE indicates hardware/power/cooling > > > issues > > > > Doesn't an MCE also cover some hardware memory problems - parity/ECC > > issues etc? > > Parity/ECC on main memory is reported by the chipset and needs seperate > drivers or apps to handle this Yes - MCE only covers errors in the CPU's cache, IIRC? (Is there still an NMI on main memory parity errors, or has this changed on modern chipsets? Presumably ECC is handled differently, being recoverable??) James. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] Please read the FAQ at http://www.tux.org/lkml/
Re: CPU error codes
> > In the intel databook. Generally an MCE indicates hardware/power/cooling > > issues > > Doesn't an MCE also cover some hardware memory problems - parity/ECC > issues etc? Parity/ECC on main memory is reported by the chipset and needs seperate drivers or apps to handle this - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] Please read the FAQ at http://www.tux.org/lkml/
Re: CPU error codes
In the intel databook. Generally an MCE indicates hardware/power/cooling issues Doesn't an MCE also cover some hardware memory problems - parity/ECC issues etc? Parity/ECC on main memory is reported by the chipset and needs seperate drivers or apps to handle this - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] Please read the FAQ at http://www.tux.org/lkml/
Re: CPU error codes
On Wed, 31 Jan 2001, Alan Cox wrote: In the intel databook. Generally an MCE indicates hardware/power/cooling issues Doesn't an MCE also cover some hardware memory problems - parity/ECC issues etc? Parity/ECC on main memory is reported by the chipset and needs seperate drivers or apps to handle this Yes - MCE only covers errors in the CPU's cache, IIRC? (Is there still an NMI on main memory parity errors, or has this changed on modern chipsets? Presumably ECC is handled differently, being recoverable??) James. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] Please read the FAQ at http://www.tux.org/lkml/
Re: CPU error codes
On Wed, 31 Jan 2001, James Sutherland wrote: On Wed, 31 Jan 2001, Alan Cox wrote: Parity/ECC on main memory is reported by the chipset and needs seperate drivers or apps to handle this Yes - MCE only covers errors in the CPU's cache, IIRC? (Is there still an NMI on main memory parity errors, or has this changed on modern chipsets? Presumably ECC is handled differently, being recoverable??) You can program the northbridge to generate NMI or not, on ECC errors. Most chipsets still need to scrub memory after an error to reset ECC bits. -Dan - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] Please read the FAQ at http://www.tux.org/lkml/
Re: CPU error codes
Followup to: <[EMAIL PROTECTED]> By author:James Sutherland <[EMAIL PROTECTED]> In newsgroup: linux.dev.kernel > > On Thu, 25 Jan 2001, Alan Cox wrote: > > > > I was wondering if someone could tell me where I can find > > > Xeon Pentium III cpu error messages/codes > > > > In the intel databook. Generally an MCE indicates hardware/power/cooling > > issues > > Doesn't an MCE also cover some hardware memory problems - parity/ECC > issues etc? > Not main memory, but it does include cache errors. -hpa -- <[EMAIL PROTECTED]> at work, <[EMAIL PROTECTED]> in private! "Unix gives you enough rope to shoot yourself in the foot." http://www.zytor.com/~hpa/puzzle.txt - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] Please read the FAQ at http://www.tux.org/lkml/
Re: CPU error codes
On Thu, 25 Jan 2001, Alan Cox wrote: > > I was wondering if someone could tell me where I can find > > Xeon Pentium III cpu error messages/codes > > In the intel databook. Generally an MCE indicates hardware/power/cooling > issues Doesn't an MCE also cover some hardware memory problems - parity/ECC issues etc? James. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] Please read the FAQ at http://www.tux.org/lkml/
Re: CPU error codes
On Thu, 25 Jan 2001, Alan Cox wrote: I was wondering if someone could tell me where I can find Xeon Pentium III cpu error messages/codes In the intel databook. Generally an MCE indicates hardware/power/cooling issues Doesn't an MCE also cover some hardware memory problems - parity/ECC issues etc? James. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] Please read the FAQ at http://www.tux.org/lkml/
Re: CPU error codes
> I was wondering if someone could tell me where I can find > Xeon Pentium III cpu error messages/codes In the intel databook. Generally an MCE indicates hardware/power/cooling issues - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] Please read the FAQ at http://www.tux.org/lkml/
CPU error codes
I was wondering if someone could tell me where I can find Xeon Pentium III cpu error messages/codes I have a machine that crashed with: kernel: CPU 3: Machine Check Exception: 0004 kernel: Bank 1: b2000175<0>Kernel panic: CPU context - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] Please read the FAQ at http://www.tux.org/lkml/
CPU error codes
I was wondering if someone could tell me where I can find Xeon Pentium III cpu error messages/codes I have a machine that crashed with: kernel: CPU 3: Machine Check Exception: 0004 kernel: Bank 1: b20001750Kernel panic: CPU context - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] Please read the FAQ at http://www.tux.org/lkml/
Re: CPU error codes
I was wondering if someone could tell me where I can find Xeon Pentium III cpu error messages/codes In the intel databook. Generally an MCE indicates hardware/power/cooling issues - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] Please read the FAQ at http://www.tux.org/lkml/
