Re: Build option survey for stable/8 r210741 (for nanobsd)

2010-08-23 Thread Poul-Henning Kamp
In message 2010085940.4...@unknown, Bruce Cran writes:
On Sun, 22 Aug 2010 21:23:48 +
Poul-Henning Kamp p...@phk.freebsd.dk wrote:

  http://phk/misc/build_options_stable_8_210741/

Did you mean http://phk.freebsd.dk/misc/build_options_stable_8_210741/ ?

Yes, sorry, I was sleepy...

-- 
Poul-Henning Kamp   | UNIX since Zilog Zeus 3.20
p...@freebsd.org | TCP/IP since RFC 956
FreeBSD committer   | BSD since 4.3-tahoe
Never attribute to malice what can adequately be explained by incompetence.
___
freebsd-stable@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-stable
To unsubscribe, send any mail to freebsd-stable-unsubscr...@freebsd.org


Re: kernel MCA messages

2010-08-23 Thread Andriy Gapon
on 23/08/2010 05:05 Dan Langille said the following:
 On 8/22/2010 9:18 PM, Dan Langille wrote:
 What does this mean?

 kernel: MCA: Bank 4, Status 0x940c4001fe080813
 kernel: MCA: Global Cap 0x0105, Status 0x
 kernel: MCA: Vendor AuthenticAMD, ID 0xf5a, APIC ID 0
 kernel: MCA: CPU 0 COR BUSLG Source RD Memory
 kernel: MCA: Address 0x7ff6b0

 FreeBSD 7.3-STABLE #1: Sun Aug 22 23:16:43
 
 And another one:
 
 kernel: MCA: Bank 4, Status 0x9459c0014a080813
 kernel: MCA: Global Cap 0x0105, Status 0x
 kernel: MCA: Vendor AuthenticAMD, ID 0xf5a, APIC ID 0
 kernel: MCA: CPU 0 COR BUSLG Source RD Memory
 kernel: MCA: Address 0x7ff670

I believe that you get correctable RAM ECC errors, but not entirely sure.
There is mcelog utility that decodes such messages into human-friendly 
descriptions.
The utility is available on Linux-based systems.
John Baldwin has a port of it to FreeBSD, but it seems to be WIP and is private
so far.  Wait and watch John posting decoded text in this thread :-)

-- 
Andriy Gapon
___
freebsd-stable@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-stable
To unsubscribe, send any mail to freebsd-stable-unsubscr...@freebsd.org


Re: ZFS performance question

2010-08-23 Thread Ivan Voras
On 08/20/10 12:30, Heinrich Rebehn wrote:

 I am somewhat concerned about the numbers for per-char-output and 
 per-char-input. In fact, i have never before seen that low numbers in a 
 bonnie test. Using a single disk with UFS yields about 6 times as much.
 

 BTW: Running OpenSolaris on the same hardware yields 110306 for 
 per-char-write and 94698 for per-char-read.

per-char stats are different between different operating systems
because of how they are implemented. Apparently, bonnie++ forces full
disk writes (fsyncs) for each byte written on BSDs, but Linux (and
apparently Solaris) somehow manage to write-cache this (or at least -
cache it much more). It only matters if you have software which depends
on this caching and performs slowly otherwise.


___
freebsd-stable@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-stable
To unsubscribe, send any mail to freebsd-stable-unsubscr...@freebsd.org


Watchdog not being disabled while dumping core

2010-08-23 Thread Jeremy Chadwick
It was brought to my attention that on FreeBSD with a hardware watchdog
in use (e.g. ichwd(4) + watchdogd(8)), once the kernel panics, it's
quite possible for the watchdog to fire (reboot the system) once the
panic has happened.  This issue basically inhibits the ability for a
system with a hardware watchdog in place to be able to successfully
complete doadump().

There's confirmations of this problem dating all the way back to 2005:

PR kern/82219, opened in 2005:
http://www.freebsd.org/cgi/query-pr.cgi?pr=kern/82219

PR bin/145183, opened in 2010 (not sure if this is the same):
http://www.freebsd.org/cgi/query-pr.cgi?pr=bin/145183

Confirmation that the problem still exists today (first paragraph):
http://lists.freebsd.org/pipermail/freebsd-stable/2010-August/058350.html

On Linux, it appears that they've worked around this problem by using
what's called a pretimeout (basically a way to get the watchdog to
become delayed, thus not firing during important tasks):
http://www.mjmwired.net/kernel/Documentation/watchdog/watchdog-api.txt

According to watchdog(4), it looks like the kernel setting WD_PASSIVE
immediately upon entering panic would solve the problem, but the BUGS
section indicates WD_PASSIVE hasn't been implemented (returns ENOSYS).

Thoughts on solving this dilemma?

-- 
| Jeremy Chadwick   j...@parodius.com |
| Parodius Networking   http://www.parodius.com/ |
| UNIX Systems Administrator  Mountain View, CA, USA |
| Making life hard for others since 1977.  PGP: 4BD6C0CB |

___
freebsd-stable@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-stable
To unsubscribe, send any mail to freebsd-stable-unsubscr...@freebsd.org


Re: Watchdog not being disabled while dumping core

2010-08-23 Thread Poul-Henning Kamp
In message 20100823103412.ga21...@icarus.home.lan, Jeremy Chadwick writes:

It was brought to my attention that on FreeBSD with a hardware watchdog
in use (e.g. ichwd(4) + watchdogd(8)), once the kernel panics, it's
quite possible for the watchdog to fire (reboot the system) once the
panic has happened.  This issue basically inhibits the ability for a
system with a hardware watchdog in place to be able to successfully
complete doadump().

The good news is that the watchdog hopefully gets your system back
on the air, even if the dumping hangs.

If it is decided to reset/disarm the watchdog before a dump, please
make that a sysctl tunable.



-- 
Poul-Henning Kamp   | UNIX since Zilog Zeus 3.20
p...@freebsd.org | TCP/IP since RFC 956
FreeBSD committer   | BSD since 4.3-tahoe
Never attribute to malice what can adequately be explained by incompetence.
___
freebsd-stable@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-stable
To unsubscribe, send any mail to freebsd-stable-unsubscr...@freebsd.org


Re: Watchdog not being disabled while dumping core

2010-08-23 Thread Xin LI
On Mon, Aug 23, 2010 at 3:34 AM, Jeremy Chadwick
free...@jdc.parodius.com wrote:
 PR bin/145183, opened in 2010 (not sure if this is the same):
 http://www.freebsd.org/cgi/query-pr.cgi?pr=bin/145183

Speaking for this I think we can do it by issuing an explicit
watchdog(8) command on shutdown (like, set the timeout to several
minutes) in /etc/rc.d/watchdog's shutdown section.  This would be
trivial to implement.  Additionally, I'd personally think init(8)
should be taught about watchdog facility.

For panics, I think we should have the disk driver to pat watchdog
rather than disabling it in their write success callback?  Another
thing is that ddb should be able to disable watchdog when it's waiting
for keyboard input (or received first user input) I think.

Cheers,
-- 
Xin LI delp...@delphij.net http://www.delphij.net
___
freebsd-stable@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-stable
To unsubscribe, send any mail to freebsd-stable-unsubscr...@freebsd.org


Re: Watchdog not being disabled while dumping core

2010-08-23 Thread Andriy Gapon
on 23/08/2010 13:53 Poul-Henning Kamp said the following:
 In message 20100823103412.ga21...@icarus.home.lan, Jeremy Chadwick writes:
 
 It was brought to my attention that on FreeBSD with a hardware watchdog
 in use (e.g. ichwd(4) + watchdogd(8)), once the kernel panics, it's
 quite possible for the watchdog to fire (reboot the system) once the
 panic has happened.  This issue basically inhibits the ability for a
 system with a hardware watchdog in place to be able to successfully
 complete doadump().
 
 The good news is that the watchdog hopefully gets your system back
 on the air, even if the dumping hangs.
 
 If it is decided to reset/disarm the watchdog before a dump, please
 make that a sysctl tunable.

I'd rather add code to take over watchdog from watchdogd and to pat the dog 
while
dumping, perhaps some other crucial places (like right before calling reset).
This way we could ensure that system doesn't hang while dumping or in reset
routine or etc.

Another workaround is to set watchdog timeout large enough for dumping to
complete, but that increases time that system is unavailable during a 'hard' 
hang
(e.g. caused by hardware).

-- 
Andriy Gapon
___
freebsd-stable@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-stable
To unsubscribe, send any mail to freebsd-stable-unsubscr...@freebsd.org


Re: Watchdog not being disabled while dumping core

2010-08-23 Thread Poul-Henning Kamp
In message 4c725dfc.8000...@icyb.net.ua, Andriy Gapon writes:
on 23/08/2010 13:53 Poul-Henning Kamp said the following:
 In message 20100823103412.ga21...@icarus.home.lan, Jeremy Chadwick writes:

Another workaround is to set watchdog timeout large enough for dumping to
complete, but that increases time that system is unavailable during a 'hard'
hang (e.g. caused by hardware).

You cannot trust the hardware to support such long timeouts.

-- 
Poul-Henning Kamp   | UNIX since Zilog Zeus 3.20
p...@freebsd.org | TCP/IP since RFC 956
FreeBSD committer   | BSD since 4.3-tahoe
Never attribute to malice what can adequately be explained by incompetence.
___
freebsd-stable@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-stable
To unsubscribe, send any mail to freebsd-stable-unsubscr...@freebsd.org


Re: kernel MCA messages

2010-08-23 Thread John Baldwin
On Monday, August 23, 2010 2:44:38 am Andriy Gapon wrote:
 on 23/08/2010 05:05 Dan Langille said the following:
  On 8/22/2010 9:18 PM, Dan Langille wrote:
  What does this mean?
 
  kernel: MCA: Bank 4, Status 0x940c4001fe080813
  kernel: MCA: Global Cap 0x0105, Status 0x
  kernel: MCA: Vendor AuthenticAMD, ID 0xf5a, APIC ID 0
  kernel: MCA: CPU 0 COR BUSLG Source RD Memory
  kernel: MCA: Address 0x7ff6b0
 
  FreeBSD 7.3-STABLE #1: Sun Aug 22 23:16:43
  
  And another one:
  
  kernel: MCA: Bank 4, Status 0x9459c0014a080813
  kernel: MCA: Global Cap 0x0105, Status 0x
  kernel: MCA: Vendor AuthenticAMD, ID 0xf5a, APIC ID 0
  kernel: MCA: CPU 0 COR BUSLG Source RD Memory
  kernel: MCA: Address 0x7ff670
 
 I believe that you get correctable RAM ECC errors, but not entirely sure.
 There is mcelog utility that decodes such messages into human-friendly 
 descriptions.
 The utility is available on Linux-based systems.
 John Baldwin has a port of it to FreeBSD, but it seems to be WIP and is 
 private
 so far.  Wait and watch John posting decoded text in this thread :-)

It is not private, it is in //depot/projects/mcelog/... in p4.  It is not a
complete port yet though (doesn't support the daemon and client modes for
example).

Details for these errors:

HARDWARE ERROR. This is *NOT* a software problem!
Please contact your hardware vendor
CPU 0 4 northbridge 
ADDR 7ff6b0 
  Northbridge RAM Chipkill ECC error
  Chipkill ECC syndrome = fe18
   bit32 = err cpu0
   bit46 = corrected ecc error
  bus error 'local node origin, request didn't time out
 generic read mem transaction
 memory access, level generic'
STATUS 940c4001fe080813 MCGSTATUS 0
MCGCAP 105 APICID 0 SOCKETID 0 
CPUID Vendor AMD Family 15 Model 5
HARDWARE ERROR. This is *NOT* a software problem!
Please contact your hardware vendor
CPU 0 4 northbridge 
ADDR 7ff670 
  Northbridge RAM Chipkill ECC error
  Chipkill ECC syndrome = 4ab3
   bit32 = err cpu0
   bit46 = corrected ecc error
  bus error 'local node origin, request didn't time out
 generic read mem transaction
 memory access, level generic'
STATUS 9459c0014a080813 MCGSTATUS 0
MCGCAP 105 APICID 0 SOCKETID 0 
CPUID Vendor AMD Family 15 Model 5

As Andriy guessed, I believe both of these are corrected ECC errors.  You
can likely ignore them as a low rate of corrected ECC errors is not
unexpected.

-- 
John Baldwin
___
freebsd-stable@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-stable
To unsubscribe, send any mail to freebsd-stable-unsubscr...@freebsd.org


Re: Strange buildworld error (uuid_*)

2010-08-23 Thread John Baldwin
On Friday, August 20, 2010 8:46:04 am Mikhail T. wrote:
  Hello!
 
 With some trickery (had to define: WITHOUT_CDDL, WITHOUT_SSP, WITH_GCC3,
 NO_WERROR) I upgraded my laptop directly from 6.3 to 8.1-STABLE. It now
 boots nicely.
 
 I'd like to make another round of buildworld/buildkernel -- using the
 existing tools... That, however, breaks in the most unexpected place:

Your libstand is too stale.

-- 
John Baldwin
___
freebsd-stable@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-stable
To unsubscribe, send any mail to freebsd-stable-unsubscr...@freebsd.org


Re: Watchdog not being disabled while dumping core

2010-08-23 Thread Erik Trulsson
On Mon, Aug 23, 2010 at 04:07:47AM -0700, Xin LI wrote:
 On Mon, Aug 23, 2010 at 3:34 AM, Jeremy Chadwick
 free...@jdc.parodius.com wrote:
  PR bin/145183, opened in 2010 (not sure if this is the same):
  http://www.freebsd.org/cgi/query-pr.cgi?pr=bin/145183
 
 Speaking for this I think we can do it by issuing an explicit
 watchdog(8) command on shutdown (like, set the timeout to several
 minutes) in /etc/rc.d/watchdog's shutdown section.  This would be
 trivial to implement.

No, it would not be trivial to implement (at least not if you want it
to actually work correctly.)  The reason for that is that at least some
(perhaps even most) hardware watchdog devices do not support so long
timeouts.

I know for example that the watchdog in the ixp425 CPU has a maximum
timeout of 65 seconds.  Reading the manpage for ichwd(4) it seems that
it has maximum timeout of about 37 seconds.

I suspect that other hardware watchdogs have similar limits, which
leads to the conclusion that one should not assume watchdog timeouts
longer than maybe 30 seconds to be supported.





-- 
Insert your favourite quote here.
Erik Trulsson
ertr1...@student.uu.se
___
freebsd-stable@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-stable
To unsubscribe, send any mail to freebsd-stable-unsubscr...@freebsd.org


Re: Strange buildworld error (uuid_*)

2010-08-23 Thread Mikhail T.

23.08.2010 08:17, John Baldwin написав(ла):

With some trickery (had to define: WITHOUT_CDDL, WITHOUT_SSP, WITH_GCC3,
  NO_WERROR) I upgraded my laptop directly from 6.3 to 8.1-STABLE. It now
  boots nicely.

  I'd like to make another round of buildworld/buildkernel -- using the
  existing tools... That, however, breaks in the most unexpected place:



Your libstand is too stale.


The only libstand found on the computer (/usr/lib/libstand.a) is from 
August 19th -- the version built by FreeBSD-6's gcc-3 from FreeBSD-8.1's 
sources.


According to nm, the library does define both uuid_equal and uuid_is_nil:

m...@vaio:~ (106) nm /usr/lib/libstand.a | grep uuid
uuid_equal.o:
 T uuid_equal
 U uuid_is_nil
uuid_is_nil.o:
 T uuid_is_nil

Yours,

-mi
___
freebsd-stable@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-stable
To unsubscribe, send any mail to freebsd-stable-unsubscr...@freebsd.org


Re: 8.1R ZFS almost locking up system

2010-08-23 Thread Peter Jeremy
On 2010-Aug-21 23:04:35 +0100, Tim Bishop t...@bishnet.net wrote:
I've had a problem on a FreeBSD 8.1R system for a few weeks. It seems
that ZFS gets in to an almost unresponsive state. Last time it did it
(two weeks ago) I couldn't even log in, although the system was up, this
time I could manage a reboot but couldn't stop any applications (they
were likely hanging on I/O).

Unless you have a ZFS-only system, it's possible you are running out
of free memory (see the free entry in top(1) or 'systat -v') - in
which case r211581 (and r211599 which fixes a mismerge) should help.
Your very high kstat.zfs.misc.arcstats.memory_throttle_count suggests
this is your problem.

I have a more extensive patch in
http://www.freebsd.org/cgi/query-pr.cgi?pr=146410

-- 
Peter Jeremy


pgpVn6Q2Ml3YY.pgp
Description: PGP signature


Re: kernel MCA messages

2010-08-23 Thread Matthew D. Fuller
On Mon, Aug 23, 2010 at 08:20:35AM -0400 I heard the voice of
John Baldwin, and lo! it spake thus:

 It is not private, it is in //depot/projects/mcelog/... in p4.

Which may as well be Siberia for us lowly non-developers.  Any chance
you could stick a tarball or a patch against upstream mcelog
somewhere?


-- 
Matthew Fuller (MF4839)   |  fulle...@over-yonder.net
Systems/Network Administrator |  http://www.over-yonder.net/~fullermd/
   On the Internet, nobody can hear you scream.
___
freebsd-stable@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-stable
To unsubscribe, send any mail to freebsd-stable-unsubscr...@freebsd.org


Re: 8.1R ZFS almost locking up system

2010-08-23 Thread Tim Bishop
On Sat, Aug 21, 2010 at 05:24:29PM -0500, Dan Nelson wrote:
 In the last episode (Aug 21), Tim Bishop said:
  I've had a problem on a FreeBSD 8.1R system for a few weeks. It seems
  that ZFS gets in to an almost unresponsive state. Last time it did it
  (two weeks ago) I couldn't even log in, although the system was up, this
  time I could manage a reboot but couldn't stop any applications (they
  were likely hanging on I/O).
 
 Could your pool be very close to full?  Zfs will throttle itself when it's
 almost out of disk space.  I know it's saved me from filling up my
 filesystems a couple times :)

It's not close to full, so I don't think that's the issue.

  A few items from top, including zfskern:
  
PID USERNAME  THR PRI NICE   SIZERES STATE   C   TIME   WCPU COMMAND
  5 root4  -8- 0K60K zio-i  0  54:38  3.47% zfskern
  91775 70  1  440 53040K 31144K tx-tx  1   2:11  0.00% postgres
  39661 tdb 1  440 55776K 32968K tx-tx  0   0:39  0.00% mutt
  14828 root1  470 14636K  1572K tx-tx  1   0:03  0.00% zfs
  11188 root1  510 14636K  1572K tx-tx  0   0:03  0.00% zfs
  
  At some point during this process my zfs snapshots have been failing to
  complete:
  
  root5  0.8  0.0 060  ??  DL7Aug10  54:43.83 [zfskern]
  root 8265  0.0  0.0 14636  1528  ??  D10:00AM   0:03.12 zfs 
  snapshot -r po...@2010-08-21_10:00:01--1d
  root11188  0.0  0.1 14636  1572  ??  D11:00AM   0:02.93 zfs 
  snapshot -r po...@2010-08-21_11:00:01--1d
  root14828  0.0  0.1 14636  1572  ??  D12:00PM   0:03.04 zfs 
  snapshot -r po...@2010-08-21_12:00:00--1d
  root17862  0.0  0.1 14636  1572  ??  D 1:00PM   0:01.96 zfs 
  snapshot -r po...@2010-08-21_13:00:01--1d
  root20986  0.0  0.1 14636  1572  ??  D 2:00PM   0:02.07 zfs 
  snapshot -r po...@2010-08-21_14:00:01--1d
 
 procstat -k on some of these processes might help to pinpoint what part of
 the zfs code they're all waiting in.

I'll do that. Thanks for the pointer :-)

Tim.

-- 
Tim Bishop
http://www.bishnet.net/tim/
PGP Key: 0x5AE7D984
___
freebsd-stable@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-stable
To unsubscribe, send any mail to freebsd-stable-unsubscr...@freebsd.org


Re: kernel MCA messages

2010-08-23 Thread Dan Langille

On 8/22/2010 10:05 PM, Dan Langille wrote:

On 8/22/2010 9:18 PM, Dan Langille wrote:

What does this mean?

kernel: MCA: Bank 4, Status 0x940c4001fe080813
kernel: MCA: Global Cap 0x0105, Status 0x
kernel: MCA: Vendor AuthenticAMD, ID 0xf5a, APIC ID 0
kernel: MCA: CPU 0 COR BUSLG Source RD Memory
kernel: MCA: Address 0x7ff6b0

FreeBSD 7.3-STABLE #1: Sun Aug 22 23:16:43


And another one:

kernel: MCA: Bank 4, Status 0x9459c0014a080813
kernel: MCA: Global Cap 0x0105, Status 0x
kernel: MCA: Vendor AuthenticAMD, ID 0xf5a, APIC ID 0
kernel: MCA: CPU 0 COR BUSLG Source RD Memory
kernel: MCA: Address 0x7ff670


kernel: MCA: Bank 4, Status 0x947ec000d8080a13
kernel: MCA: Global Cap 0x0105, Status 0x
kernel: MCA: Vendor AuthenticAMD, ID 0xf5a, APIC ID 0
kernel: MCA: CPU 0 COR BUSLG Responder RD Memory
kernel: MCA: Address 0xbfa9930

Another one.

These errors started appearing after upgrading to 8.1-STABLE from 7.2.. 
something.  I suspect the functionality was added about then



--
Dan Langille - http://langille.org/
___
freebsd-stable@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-stable
To unsubscribe, send any mail to freebsd-stable-unsubscr...@freebsd.org


Re: 8.1R ZFS almost locking up system

2010-08-23 Thread Tim Bishop
On Tue, Aug 24, 2010 at 06:49:23AM +1000, Peter Jeremy wrote:
 On 2010-Aug-21 23:04:35 +0100, Tim Bishop t...@bishnet.net wrote:
 I've had a problem on a FreeBSD 8.1R system for a few weeks. It seems
 that ZFS gets in to an almost unresponsive state. Last time it did it
 (two weeks ago) I couldn't even log in, although the system was up, this
 time I could manage a reboot but couldn't stop any applications (they
 were likely hanging on I/O).
 
 Unless you have a ZFS-only system, it's possible you are running out
 of free memory (see the free entry in top(1) or 'systat -v') - in
 which case r211581 (and r211599 which fixes a mismerge) should help.
 Your very high kstat.zfs.misc.arcstats.memory_throttle_count suggests
 this is your problem.

Thanks. At the time I had a reasonable amount free (~450MB from 3GB),
but it had dropped lower than that at some points previously.

I'll take a closer look at that next time, and look at that patch (or
upgrade to 8-STABLE).

And the system has a UFS root, but all the apps/data are stored in ZFS.

Tim.

-- 
Tim Bishop
http://www.bishnet.net/tim/
PGP Key: 0x5AE7D984
___
freebsd-stable@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-stable
To unsubscribe, send any mail to freebsd-stable-unsubscr...@freebsd.org


Re: kernel MCA messages

2010-08-23 Thread Andriy Gapon
on 24/08/2010 02:43 Dan Langille said the following:
 On 8/22/2010 10:05 PM, Dan Langille wrote:
 On 8/22/2010 9:18 PM, Dan Langille wrote:
 What does this mean?

 kernel: MCA: Bank 4, Status 0x940c4001fe080813
 kernel: MCA: Global Cap 0x0105, Status 0x
 kernel: MCA: Vendor AuthenticAMD, ID 0xf5a, APIC ID 0
 kernel: MCA: CPU 0 COR BUSLG Source RD Memory
 kernel: MCA: Address 0x7ff6b0

 FreeBSD 7.3-STABLE #1: Sun Aug 22 23:16:43

 And another one:

 kernel: MCA: Bank 4, Status 0x9459c0014a080813
 kernel: MCA: Global Cap 0x0105, Status 0x
 kernel: MCA: Vendor AuthenticAMD, ID 0xf5a, APIC ID 0
 kernel: MCA: CPU 0 COR BUSLG Source RD Memory
 kernel: MCA: Address 0x7ff670
 
 kernel: MCA: Bank 4, Status 0x947ec000d8080a13
 kernel: MCA: Global Cap 0x0105, Status 0x
 kernel: MCA: Vendor AuthenticAMD, ID 0xf5a, APIC ID 0
 kernel: MCA: CPU 0 COR BUSLG Responder RD Memory
 kernel: MCA: Address 0xbfa9930
 
 Another one.
 
 These errors started appearing after upgrading to 8.1-STABLE from 7.2..
 something.  I suspect the functionality was added about then

Please strop the flood :-)
Depending on hardware there could be hundreds of such errors per day.
Either replace memory modules or learn to live with these messages.

-- 
Andriy Gapon
___
freebsd-stable@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-stable
To unsubscribe, send any mail to freebsd-stable-unsubscr...@freebsd.org


Re: kernel MCA messages

2010-08-23 Thread Dan Langille

On 8/23/2010 7:47 PM, Andriy Gapon wrote:

on 24/08/2010 02:43 Dan Langille said the following:

On 8/22/2010 10:05 PM, Dan Langille wrote:

On 8/22/2010 9:18 PM, Dan Langille wrote:

What does this mean?

kernel: MCA: Bank 4, Status 0x940c4001fe080813
kernel: MCA: Global Cap 0x0105, Status 0x
kernel: MCA: Vendor AuthenticAMD, ID 0xf5a, APIC ID 0
kernel: MCA: CPU 0 COR BUSLG Source RD Memory
kernel: MCA: Address 0x7ff6b0

FreeBSD 7.3-STABLE #1: Sun Aug 22 23:16:43


And another one:

kernel: MCA: Bank 4, Status 0x9459c0014a080813
kernel: MCA: Global Cap 0x0105, Status 0x
kernel: MCA: Vendor AuthenticAMD, ID 0xf5a, APIC ID 0
kernel: MCA: CPU 0 COR BUSLG Source RD Memory
kernel: MCA: Address 0x7ff670


kernel: MCA: Bank 4, Status 0x947ec000d8080a13
kernel: MCA: Global Cap 0x0105, Status 0x
kernel: MCA: Vendor AuthenticAMD, ID 0xf5a, APIC ID 0
kernel: MCA: CPU 0 COR BUSLG Responder RD Memory
kernel: MCA: Address 0xbfa9930

Another one.

These errors started appearing after upgrading to 8.1-STABLE from 7.2..
something.  I suspect the functionality was added about then


Please strop the flood :-)


Sure.  Three emails is hardly a flood.  :)


Depending on hardware there could be hundreds of such errors per day.
Either replace memory modules or learn to live with these messages.


I was posting a remark anyone.  Thought I'd include one more that I 
noticed.  Surely you can cope.  :)


--
Dan Langille - http://langille.org/
___
freebsd-stable@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-stable
To unsubscribe, send any mail to freebsd-stable-unsubscr...@freebsd.org