Problem with XP scheduler?
in [Win32 Kernel]
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From: Pavel A. on 18 Dec 2009 14:59 If you can easily repro this, try to setup a ctrl/scroll dump as described here: http://msdn.microsoft.com/en-us/library/cc266483.aspx and get a full dump. Or connect windbg to debug it on the site. That it does not occur on win7 looks like a good thing :) --pa "tanix" <tanix(a)mongo.net> wrote in message news:hgf04f$33v$2(a)news.eternal-september.org... > In article <#yIP7T5fKHA.1824(a)TK2MSFTNGP04.phx.gbl>, "Alexander Grigoriev" > <alegr(a)earthlink.net> wrote: >>I'd say it's a problem with Firefox. Send a bug to them. > > Well, I did post to a forum and its been 2 days with no answer. > I am not sure you can file bugs as a user. > > Secondly, what I do not like about this is that it runs fine under win 7 > on the same box. > > Secondly, I do not see how it could possibly lock up the entire box. > Does it have some kernel mode drivers? > > This looks like a software bug. Some dead loop somewhere. > Except I don't even see how to figure out what is doing it > since the whole box is frozen. > >>"tanix" <tanix(a)mongo.net> wrote in message >>news:hgdirp$t0o$4(a)news.eternal-september.org... >>>I am having firefox 3.5.5 and 3.5.6 freeze my box when I update >>> several tabs in a rapid succession on Win XP SP3. >>> >>> What happens is box totally freezes. Task manager -> >>> Performance tab shows one of cores going up to 100% CPU time, >>> mouse freezes, keyboard does not work (not even ctl-alt-del) >>> and disk stops flashing every few seconds as it normally does >>> under XP. >>> >>> Interestingly enough, it does not happen under Windows 7 on >>> the same box no matter how hard I try. >>> >>> Some say it is a problem with crappy XP scheduler. >>> Is there anything I can do under XP to fix this issue? >>> >>> Hardware: >>> Asus M4A78 motherboard, >>> Athlon 2, X4 620 CPU, >>> 4 Gigs of DDR2 ram by Team Extreme. >>> Running on Windows XP SP3. >>> >>> -- >>> Programmer's Goldmine collections: >>> http://preciseinfo.org >> >> > > -- > Programmer's Goldmine collections: > > http://preciseinfo.org > > Code examples and expert discussions on > C++, MFC, VC, ATL, STL, templates, Java, Python, Javascript
From: m on 18 Dec 2009 20:46 What process is using that CPU time? If it is not directly ascribable to a process, you can bet it is a driver causing the problem. Most likely, the difference in Windows 7 has nothing to do with Firefox, but a better driver for some piece of HW in your system. You can test this theory by altering the HW config and trying to reproduce the problem. BIOS settings can have important impact on driver and IO path selection too. "tanix" <tanix(a)mongo.net> wrote in message news:hgdirp$t0o$4(a)news.eternal-september.org... > I am having firefox 3.5.5 and 3.5.6 freeze my box when I update > several tabs in a rapid succession on Win XP SP3. > > What happens is box totally freezes. Task manager -> > Performance tab shows one of cores going up to 100% CPU time, > mouse freezes, keyboard does not work (not even ctl-alt-del) > and disk stops flashing every few seconds as it normally does > under XP. > > Interestingly enough, it does not happen under Windows 7 on > the same box no matter how hard I try. > > Some say it is a problem with crappy XP scheduler. > Is there anything I can do under XP to fix this issue? > > Hardware: > Asus M4A78 motherboard, > Athlon 2, X4 620 CPU, > 4 Gigs of DDR2 ram by Team Extreme. > Running on Windows XP SP3. > > -- > Programmer's Goldmine collections: > http://preciseinfo.org
From: tanix on 19 Dec 2009 01:29 In article <371FB587-D396-4499-AEF4-C7A12514B925(a)microsoft.com>, "Pavel A." <pavel_a(a)12fastmail34.fm> wrote: >If you can easily repro this, try to setup a ctrl/scroll dump as described >here: >http://msdn.microsoft.com/en-us/library/cc266483.aspx >and get a full dump. Or connect windbg to debug it on the site. Well, from what I see, it does not look like a system crash. It is simply some bug in the code getting into some dead loop and tying up the processor. Secondly, since I loose the keyboard, there is nothing I can do from what I see to cause any dumps. I don't even know at which exact point the box is going to hang. >That it does not occur on win7 looks like a good thing :) Well, depends. If it IS the XP scheduler or something of a kind, it is one thing. If it is firefox proper, it is another thing. If it is firefox bad plugings, it is a totally different thing. Except I am still having a hard time comprehending how firefox can lock the mouse, unless it runs in a kernel mode. Mouse is a highest priority interrrupt at least for things we are talking about here. >--pa > >"tanix" <tanix(a)mongo.net> wrote in message >news:hgf04f$33v$2(a)news.eternal-september.org... >> In article <#yIP7T5fKHA.1824(a)TK2MSFTNGP04.phx.gbl>, "Alexander Grigoriev" >> <alegr(a)earthlink.net> wrote: >>>I'd say it's a problem with Firefox. Send a bug to them. >> >> Well, I did post to a forum and its been 2 days with no answer. >> I am not sure you can file bugs as a user. >> >> Secondly, what I do not like about this is that it runs fine under win 7 >> on the same box. >> >> Secondly, I do not see how it could possibly lock up the entire box. >> Does it have some kernel mode drivers? >> >> This looks like a software bug. Some dead loop somewhere. >> Except I don't even see how to figure out what is doing it >> since the whole box is frozen. >> >>>"tanix" <tanix(a)mongo.net> wrote in message >>>news:hgdirp$t0o$4(a)news.eternal-september.org... >>>>I am having firefox 3.5.5 and 3.5.6 freeze my box when I update >>>> several tabs in a rapid succession on Win XP SP3. >>>> >>>> What happens is box totally freezes. Task manager -> >>>> Performance tab shows one of cores going up to 100% CPU time, >>>> mouse freezes, keyboard does not work (not even ctl-alt-del) >>>> and disk stops flashing every few seconds as it normally does >>>> under XP. >>>> >>>> Interestingly enough, it does not happen under Windows 7 on >>>> the same box no matter how hard I try. >>>> >>>> Some say it is a problem with crappy XP scheduler. >>>> Is there anything I can do under XP to fix this issue? >>>> >>>> Hardware: >>>> Asus M4A78 motherboard, >>>> Athlon 2, X4 620 CPU, >>>> 4 Gigs of DDR2 ram by Team Extreme. >>>> Running on Windows XP SP3. -- Programmer's Goldmine collections: http://preciseinfo.org Tens of thousands of code examples and expert discussions on C++, MFC, VC, ATL, STL, templates, Java, Python, Javascript, organized by major topics of language, tools, methods, techniques.
From: tanix on 19 Dec 2009 01:38 In article <edhcj0EgKHA.5792(a)TK2MSFTNGP05.phx.gbl>, "m" <m(a)b.c> wrote: >What process is using that CPU time? Well, I tried to use the task manager -> processes tab to see if it displays me which process is eating up the cpu time. I was hoping to see the firefox doing it. But the problem is. Once it locks up, it locks up so bad, that even task manager -> processes is not updated. So you just sit there zombified. > If it is not directly ascribable to a >process, you can bet it is a driver causing the problem. Most likely, the >difference in Windows 7 has nothing to do with Firefox, but a better driver >for some piece of HW in your system. Well, it is not clear it has anything to do with any kind of driver. What kind of driver in firefox can possibly do that? The network driver is fine cause I am running some pretty heavy duty processes that do multi-threaded downloads from the network at a peak rate. The display driver is fine cause I don't have any kind of problem with any other app so far. The disk drivers are obviosly fine. I just downloaded the latest version of BIOS. So, I doubt that is the problem. I just can not think what kind of driver could be doing it. I have no clue what kind of drivers firefox might use for example for optimizing the rendering performance. So, it is a wild goose chase. The latest thing I did is to disable all firefox addons exept of imacros. So far, the box behaves MUCH better. In fact, I have not seen a single hang since and i tried to update 6 of my firefox tabs in a rapid succession for 3 times and there is no problems so far. Too early to say though. I need to run it for few days to see if it pops up again. >You can test this theory by altering the HW config and trying to reproduce >the problem. BIOS settings can have important impact on driver and IO path >selection too. >"tanix" <tanix(a)mongo.net> wrote in message >news:hgdirp$t0o$4(a)news.eternal-september.org... >> I am having firefox 3.5.5 and 3.5.6 freeze my box when I update >> several tabs in a rapid succession on Win XP SP3. >> >> What happens is box totally freezes. Task manager -> >> Performance tab shows one of cores going up to 100% CPU time, >> mouse freezes, keyboard does not work (not even ctl-alt-del) >> and disk stops flashing every few seconds as it normally does >> under XP. >> >> Interestingly enough, it does not happen under Windows 7 on >> the same box no matter how hard I try. >> >> Some say it is a problem with crappy XP scheduler. >> Is there anything I can do under XP to fix this issue? >> >> Hardware: >> Asus M4A78 motherboard, >> Athlon 2, X4 620 CPU, >> 4 Gigs of DDR2 ram by Team Extreme. >> Running on Windows XP SP3. -- Programmer's Goldmine collections: http://preciseinfo.org Tens of thousands of code examples and expert discussions on C++, MFC, VC, ATL, STL, templates, Java, Python, Javascript, organized by major topics of language, tools, methods, techniques.
From: Alexander Grigoriev on 19 Dec 2009 13:07
If you run the process under debugger, then Pause/Break (and also F12) will break into it. You can also attach a remote debugger to it. "tanix" <tanix(a)mongo.net> wrote in message news:hghrt5$4fe$2(a)news.eternal-september.org... > In article <371FB587-D396-4499-AEF4-C7A12514B925(a)microsoft.com>, "Pavel > A." <pavel_a(a)12fastmail34.fm> wrote: >>If you can easily repro this, try to setup a ctrl/scroll dump as described >>here: >>http://msdn.microsoft.com/en-us/library/cc266483.aspx >>and get a full dump. Or connect windbg to debug it on the site. > > Well, from what I see, it does not look like a system crash. > It is simply some bug in the code getting into some dead loop > and tying up the processor. > > Secondly, since I loose the keyboard, there is nothing I can do > from what I see to cause any dumps. I don't even know at which > exact point the box is going to hang. > >>That it does not occur on win7 looks like a good thing :) > > Well, depends. If it IS the XP scheduler or something of a kind, > it is one thing. If it is firefox proper, it is another thing. > If it is firefox bad plugings, it is a totally different thing. > Except I am still having a hard time comprehending how firefox > can lock the mouse, unless it runs in a kernel mode. > Mouse is a highest priority interrrupt at least for things we > are talking about here. > >>--pa >> >>"tanix" <tanix(a)mongo.net> wrote in message >>news:hgf04f$33v$2(a)news.eternal-september.org... >>> In article <#yIP7T5fKHA.1824(a)TK2MSFTNGP04.phx.gbl>, "Alexander >>> Grigoriev" >>> <alegr(a)earthlink.net> wrote: >>>>I'd say it's a problem with Firefox. Send a bug to them. >>> >>> Well, I did post to a forum and its been 2 days with no answer. >>> I am not sure you can file bugs as a user. >>> >>> Secondly, what I do not like about this is that it runs fine under win 7 >>> on the same box. >>> >>> Secondly, I do not see how it could possibly lock up the entire box. >>> Does it have some kernel mode drivers? >>> >>> This looks like a software bug. Some dead loop somewhere. >>> Except I don't even see how to figure out what is doing it >>> since the whole box is frozen. >>> >>>>"tanix" <tanix(a)mongo.net> wrote in message >>>>news:hgdirp$t0o$4(a)news.eternal-september.org... >>>>>I am having firefox 3.5.5 and 3.5.6 freeze my box when I update >>>>> several tabs in a rapid succession on Win XP SP3. >>>>> >>>>> What happens is box totally freezes. Task manager -> >>>>> Performance tab shows one of cores going up to 100% CPU time, >>>>> mouse freezes, keyboard does not work (not even ctl-alt-del) >>>>> and disk stops flashing every few seconds as it normally does >>>>> under XP. >>>>> >>>>> Interestingly enough, it does not happen under Windows 7 on >>>>> the same box no matter how hard I try. >>>>> >>>>> Some say it is a problem with crappy XP scheduler. >>>>> Is there anything I can do under XP to fix this issue? >>>>> >>>>> Hardware: >>>>> Asus M4A78 motherboard, >>>>> Athlon 2, X4 620 CPU, >>>>> 4 Gigs of DDR2 ram by Team Extreme. >>>>> Running on Windows XP SP3. > > -- > Programmer's Goldmine collections: > > http://preciseinfo.org > > Tens of thousands of code examples and expert discussions on > C++, MFC, VC, ATL, STL, templates, Java, Python, Javascript, > organized by major topics of language, tools, methods, techniques. > |