* NMI appears to be stuck! (2.4.22-rc2 on dual Athlon)
@ 2003-08-17 21:28 Herbert Pötzl
2003-08-17 22:11 ` Willy Tarreau
2003-08-17 23:40 ` Karel Kulhavý
0 siblings, 2 replies; 9+ messages in thread
From: Herbert Pötzl @ 2003-08-17 21:28 UTC (permalink / raw)
To: linux-kernel; +Cc: Alan Cox
Hi All!
Still no nmi_watchdog on dual Athlon systems?
Linux version 2.4.22-rc2 on dual
processor : 0
vendor_id : AuthenticAMD
cpu family : 6
model : 6
model name : AMD Athlon(tm) MP 1800+
stepping : 2
cpu MHz : 1533.401
cache size : 256 KB
Total of 2 processors activated (6127.61 BogoMIPS). ENABLING IO-APIC IRQs ..TIMER: vector=0x31 pin1=2 pin2=0 activating NMI Watchdog ... done. testing NMI watchdog ... CPU#0: NMI appears to be stuck! testing the IO APIC....................... .................................... done. Using local APIC timer interrupts. calibrating APIC timer ...
just for curiosity, if I do not give the nmi_watchdog=1
option on the kernel boot line, the nmi seems to work fine?
# cat /proc/interrupts
CPU0 CPU1
0: 4275 2602 IO-APIC-edge timer
1: 0 2 IO-APIC-edge keyboard
2: 0 0 XT-PIC cascade
4: 157 150 IO-APIC-edge serial
8: 1 0 IO-APIC-edge rtc
9: 169 186 IO-APIC-level acpi
15: 12 3 IO-APIC-edge ide1
16: 1195 1155 IO-APIC-level aic7xxx
17: 149 144 IO-APIC-level eth1
19: 1 3 IO-APIC-level eth0
NMI: 4034 3577
LOC: 6782 6777
ERR: 0
MIS: 0
is this intentional, or have I missed something
terrible important? if you need more information,
let me know ...
TIA,
Herbert
^ permalink raw reply [flat|nested] 9+ messages in thread* Re: NMI appears to be stuck! (2.4.22-rc2 on dual Athlon)
2003-08-17 21:28 NMI appears to be stuck! (2.4.22-rc2 on dual Athlon) Herbert Pötzl
@ 2003-08-17 22:11 ` Willy Tarreau
2003-08-17 22:28 ` Herbert Pötzl
2003-08-17 23:40 ` Karel Kulhavý
1 sibling, 1 reply; 9+ messages in thread
From: Willy Tarreau @ 2003-08-17 22:11 UTC (permalink / raw)
To: linux-kernel, Alan Cox
On Sun, Aug 17, 2003 at 11:28:24PM +0200, Herbert P?tzl wrote:
>
> Hi All!
>
> Still no nmi_watchdog on dual Athlon systems?
Hi !
mine works fine only with nmi_watchdog=2. Don't know why. It's an ASUS A7M266D.
Cheers,
Willy
^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: NMI appears to be stuck! (2.4.22-rc2 on dual Athlon)
2003-08-17 22:11 ` Willy Tarreau
@ 2003-08-17 22:28 ` Herbert Pötzl
2003-08-17 22:28 ` Zwane Mwaikambo
0 siblings, 1 reply; 9+ messages in thread
From: Herbert Pötzl @ 2003-08-17 22:28 UTC (permalink / raw)
To: Willy Tarreau; +Cc: linux-kernel, Alan Cox
On Mon, Aug 18, 2003 at 12:11:14AM +0200, Willy Tarreau wrote:
> On Sun, Aug 17, 2003 at 11:28:24PM +0200, Herbert P?tzl wrote:
> >
> > Hi All!
> >
> > Still no nmi_watchdog on dual Athlon systems?
>
> Hi !
>
> mine works fine only with nmi_watchdog=2. Don't know why.
> It's an ASUS A7M266D.
hmm, nmi_watchdog=2 on the kernel boot line gives no
difference to booting without, at least according to
the boot messages ...
ENABLING IO-APIC IRQs
..TIMER: vector=0x31 pin1=2 pin2=0
testing the IO APIC.......................
.................................... done.
Using local APIC timer interrupts.
calibrating APIC timer ...
..... CPU clock speed is 1533.4487 MHz.
maybe the nmi_watchdog is always enabled?
maybe it only fails with nmi_watchdog=1 ?
shouldn't there be a message which says that
the NMI watchdog was enabled?
TIA,
Herbert
> Cheers,
> Willy
^ permalink raw reply [flat|nested] 9+ messages in thread* Re: NMI appears to be stuck! (2.4.22-rc2 on dual Athlon)
2003-08-17 22:28 ` Herbert Pötzl
@ 2003-08-17 22:28 ` Zwane Mwaikambo
2003-08-17 22:49 ` Herbert Pötzl
2003-08-18 0:16 ` Jamie Lokier
0 siblings, 2 replies; 9+ messages in thread
From: Zwane Mwaikambo @ 2003-08-17 22:28 UTC (permalink / raw)
To: Herbert Pötzl; +Cc: Willy Tarreau, linux-kernel, Alan Cox
On Mon, 18 Aug 2003, Herbert Pötzl wrote:
> > mine works fine only with nmi_watchdog=2. Don't know why.
> > It's an ASUS A7M266D.
>
> hmm, nmi_watchdog=2 on the kernel boot line gives no
> difference to booting without, at least according to
> the boot messages ...
nmi_watchdog=2 will work on the majority of i686+ (performance
counters with NMI delivery mode) boxes and you can check whether it's
enabled by doing cat /proc/interrupts and watching if the NMI line ticks
at a decent rate. nmi_watchdog=1 tends to be harder for hardware
manufacturers to get right (for some reason or other).
^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: NMI appears to be stuck! (2.4.22-rc2 on dual Athlon)
2003-08-17 22:28 ` Zwane Mwaikambo
@ 2003-08-17 22:49 ` Herbert Pötzl
2003-08-18 0:16 ` Jamie Lokier
1 sibling, 0 replies; 9+ messages in thread
From: Herbert Pötzl @ 2003-08-17 22:49 UTC (permalink / raw)
To: Zwane Mwaikambo; +Cc: Willy Tarreau, linux-kernel, Alan Cox
On Sun, Aug 17, 2003 at 06:28:46PM -0400, Zwane Mwaikambo wrote:
> On Mon, 18 Aug 2003, Herbert Pötzl wrote:
>
> > > mine works fine only with nmi_watchdog=2. Don't know why.
> > > It's an ASUS A7M266D.
> >
> > hmm, nmi_watchdog=2 on the kernel boot line gives no
> > difference to booting without, at least according to
> > the boot messages ...
>
> nmi_watchdog=2 will work on the majority of i686+ (performance
> counters with NMI delivery mode) boxes and you can check whether it's
> enabled by doing cat /proc/interrupts and watching if the NMI line ticks
okay, but this would mean that the nmi_watchdog is
enabled if I do not specify nmi_watchdog at the kernel
boot/command line ... or how should I interpret the
steadily increasing NMI counts in this case?
don't get me wrong, I'm happy if nmi_watchdog is
enabled by default, but I would like to know/verify
that ...
> at a decent rate. nmi_watchdog=1 tends to be harder for hardware
> manufacturers to get right (for some reason or other).
no nmi_watchdog and nmi_watchdog=2, both result in
increasing NMI counts, nmi_watchdog=1, only in LOC
counts ...
# cat /proc/interrupts
CPU0 CPU1
NMI: 75378 74923
LOC: 159900 159896
ERR: 0
MIS: 0
TIA,
Herbert
^ permalink raw reply [flat|nested] 9+ messages in thread* Re: NMI appears to be stuck! (2.4.22-rc2 on dual Athlon)
2003-08-17 22:28 ` Zwane Mwaikambo
2003-08-17 22:49 ` Herbert Pötzl
@ 2003-08-18 0:16 ` Jamie Lokier
2003-08-18 7:10 ` Zwane Mwaikambo
1 sibling, 1 reply; 9+ messages in thread
From: Jamie Lokier @ 2003-08-18 0:16 UTC (permalink / raw)
To: Zwane Mwaikambo; +Cc: Herbert Pötzl, Willy Tarreau, linux-kernel, Alan Cox
Zwane Mwaikambo wrote:
> > > mine works fine only with nmi_watchdog=2. Don't know why.
> > > It's an ASUS A7M266D.
> >
> > hmm, nmi_watchdog=2 on the kernel boot line gives no
> > difference to booting without, at least according to
> > the boot messages ...
>
> nmi_watchdog=2 will work on the majority of i686+ (performance
> counters with NMI delivery mode) boxes and you can check whether it's
> enabled by doing cat /proc/interrupts and watching if the NMI line ticks
> at a decent rate. nmi_watchdog=1 tends to be harder for hardware
> manufacturers to get right (for some reason or other).
Is it possible to try both at boot time and pick the one which works?
-- Jamie
^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: NMI appears to be stuck! (2.4.22-rc2 on dual Athlon)
2003-08-18 0:16 ` Jamie Lokier
@ 2003-08-18 7:10 ` Zwane Mwaikambo
0 siblings, 0 replies; 9+ messages in thread
From: Zwane Mwaikambo @ 2003-08-18 7:10 UTC (permalink / raw)
To: Jamie Lokier; +Cc: Herbert Pötzl, Willy Tarreau, linux-kernel, Alan Cox
On Mon, 18 Aug 2003, Jamie Lokier wrote:
> > nmi_watchdog=2 will work on the majority of i686+ (performance
> > counters with NMI delivery mode) boxes and you can check whether it's
> > enabled by doing cat /proc/interrupts and watching if the NMI line ticks
> > at a decent rate. nmi_watchdog=1 tends to be harder for hardware
> > manufacturers to get right (for some reason or other).
>
> Is it possible to try both at boot time and pick the one which works?
I believe we currently already do that if you do nmi_watchdog=2
^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: NMI appears to be stuck! (2.4.22-rc2 on dual Athlon)
2003-08-17 21:28 NMI appears to be stuck! (2.4.22-rc2 on dual Athlon) Herbert Pötzl
2003-08-17 22:11 ` Willy Tarreau
@ 2003-08-17 23:40 ` Karel Kulhavý
2003-08-17 22:05 ` Herbert Pötzl
1 sibling, 1 reply; 9+ messages in thread
From: Karel Kulhavý @ 2003-08-17 23:40 UTC (permalink / raw)
To: Herbert Pötzl; +Cc: linux-kernel
It seems NMI watchdog doesn't work on nforce2 (Athlon) chipset boards when APIC
is enabled.
I don't know if it works if APIC is disabled and also don't know
about other boards.
Cl<
On Sun, Aug 17, 2003 at 11:28:24PM +0200, Herbert Pötzl wrote:
>
> Hi All!
>
> Still no nmi_watchdog on dual Athlon systems?
>
> Linux version 2.4.22-rc2 on dual
>
> processor : 0
> vendor_id : AuthenticAMD
> cpu family : 6
> model : 6
> model name : AMD Athlon(tm) MP 1800+
> stepping : 2
> cpu MHz : 1533.401
> cache size : 256 KB
>
> Total of 2 processors activated (6127.61 BogoMIPS). ENABLING IO-APIC IRQs ..TIMER: vector=0x31 pin1=2 pin2=0 activating NMI Watchdog ... done. testing NMI watchdog ... CPU#0: NMI appears to be stuck! testing the IO APIC....................... .................................... done. Using local APIC timer interrupts. calibrating APIC timer ...
>
>
> just for curiosity, if I do not give the nmi_watchdog=1
> option on the kernel boot line, the nmi seems to work fine?
>
> # cat /proc/interrupts
> CPU0 CPU1
> 0: 4275 2602 IO-APIC-edge timer
> 1: 0 2 IO-APIC-edge keyboard
> 2: 0 0 XT-PIC cascade
> 4: 157 150 IO-APIC-edge serial
> 8: 1 0 IO-APIC-edge rtc
> 9: 169 186 IO-APIC-level acpi
> 15: 12 3 IO-APIC-edge ide1
> 16: 1195 1155 IO-APIC-level aic7xxx
> 17: 149 144 IO-APIC-level eth1
> 19: 1 3 IO-APIC-level eth0
> NMI: 4034 3577
> LOC: 6782 6777
> ERR: 0
> MIS: 0
>
> is this intentional, or have I missed something
> terrible important? if you need more information,
> let me know ...
>
> TIA,
> Herbert
>
>
>
> -
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^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: NMI appears to be stuck! (2.4.22-rc2 on dual Athlon)
2003-08-17 23:40 ` Karel Kulhavý
@ 2003-08-17 22:05 ` Herbert Pötzl
0 siblings, 0 replies; 9+ messages in thread
From: Herbert Pötzl @ 2003-08-17 22:05 UTC (permalink / raw)
To: Karel Kulhavý; +Cc: linux-kernel
On Mon, Aug 18, 2003 at 01:40:00AM +0200, Karel Kulhavý wrote:
> It seems NMI watchdog doesn't work on nforce2 (Athlon) chipset boards when APIC
> is enabled.
hmm, this is on a
- Tyan Tiger MPX S2466N-4M
- AMD Dual 1.8GHZ Athlon
00:00.0 Host bridge: Advanced Micro Devices [AMD]: Unknown device 700c (rev 11)
00:01.0 PCI bridge: Advanced Micro Devices [AMD]: Unknown device 700d
00:07.0 ISA bridge: Advanced Micro Devices [AMD]: Unknown device 7440 (rev 05)
isn't nForce2 from nVIDIA ?
> I don't know if it works if APIC is disabled and also don't know
> about other boards.
it works perfectly, only the nmi_watchdog cannot be
enabled ...
thanks,
Herbert
> On Sun, Aug 17, 2003 at 11:28:24PM +0200, Herbert Pötzl wrote:
> >
> > Hi All!
> >
> > Still no nmi_watchdog on dual Athlon systems?
> >
> > Linux version 2.4.22-rc2 on dual
> >
> > processor : 0
> > vendor_id : AuthenticAMD
> > cpu family : 6
> > model : 6
> > model name : AMD Athlon(tm) MP 1800+
> > stepping : 2
> > cpu MHz : 1533.401
> > cache size : 256 KB
> >
> > Total of 2 processors activated (6127.61 BogoMIPS). ENABLING IO-APIC IRQs ..TIMER: vector=0x31 pin1=2 pin2=0 activating NMI Watchdog ... done. testing NMI watchdog ... CPU#0: NMI appears to be stuck! testing the IO APIC....................... .................................... done. Using local APIC timer interrupts. calibrating APIC timer ...
> >
> >
> > just for curiosity, if I do not give the nmi_watchdog=1
> > option on the kernel boot line, the nmi seems to work fine?
> >
> > # cat /proc/interrupts
> > CPU0 CPU1
> > 0: 4275 2602 IO-APIC-edge timer
> > 1: 0 2 IO-APIC-edge keyboard
> > 2: 0 0 XT-PIC cascade
> > 4: 157 150 IO-APIC-edge serial
> > 8: 1 0 IO-APIC-edge rtc
> > 9: 169 186 IO-APIC-level acpi
> > 15: 12 3 IO-APIC-edge ide1
> > 16: 1195 1155 IO-APIC-level aic7xxx
> > 17: 149 144 IO-APIC-level eth1
> > 19: 1 3 IO-APIC-level eth0
> > NMI: 4034 3577
> > LOC: 6782 6777
> > ERR: 0
> > MIS: 0
> >
> > is this intentional, or have I missed something
> > terrible important? if you need more information,
> > let me know ...
> >
> > TIA,
> > Herbert
^ permalink raw reply [flat|nested] 9+ messages in thread
end of thread, other threads:[~2003-08-18 7:22 UTC | newest]
Thread overview: 9+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2003-08-17 21:28 NMI appears to be stuck! (2.4.22-rc2 on dual Athlon) Herbert Pötzl
2003-08-17 22:11 ` Willy Tarreau
2003-08-17 22:28 ` Herbert Pötzl
2003-08-17 22:28 ` Zwane Mwaikambo
2003-08-17 22:49 ` Herbert Pötzl
2003-08-18 0:16 ` Jamie Lokier
2003-08-18 7:10 ` Zwane Mwaikambo
2003-08-17 23:40 ` Karel Kulhavý
2003-08-17 22:05 ` Herbert Pötzl
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