I had similar problems with 8.1 too, so now i'm back to 8.0 kernel and everything works fine. What about the DMA change, do you need the latest kernel ? Stef
Le Mercredi 29 Mai 2002 09:49, vous avez ?crit : > > Have you tried kernel-secure, or an older kernel (for example the one > > provided with 8.0) ? > > > > Try to disable DMA in /etc/sysconfig/harddisk* (as suggested by John > > Allen). > > oh..yes. old kernel is okay. mdk 8.1 is ok (sorry not try mdk 8.0) > red-hat 7.2 is okay. red-hat 7.3 is okay. > DMA must disable. > if DMA enable, > under my test with a scratched CD, only red-7.2 can survive. > mdk 8.1 will lock cd-rom forever until reboot. > mdk 8.2 and red-hat 7.3 will hang. > > mdk kernel(include cooker) seems not as new as red-hat in some respects. > it seems red-hat kernel already solve the problem. > (original 2.4.18 + serverworks chipset + smp + highmem = freeze. > it can be checked at www.kerenel.org email list archive, and this > is my problem.) > > and redhat's megaraid driver is much faster. > in my hp tc4100 server with hp net-raid 1M raid card, > testing with "hdparm -t /dev/sda" > redhat 7.3 got about 70MB/sec > redhat 7.2 and mandrake 8.2 got only about 30MB/sec > > > Stef > > > > Le Mardi 28 Mai 2002 18:05, [EMAIL PROTECTED] a ?crit : > >> hi: > >> i test hp-tc4100 with red-hat 7.3 today. > >> it is okay after upgrade to 2.4.18-4. > >> (2.4.18-3 kernel panic after several hours. just like red-hat said.) > >> > >> i also test the latest cooker 2.4.18-16 > >> it crashed as usual. > >> so the problem seems at mandrake kernel. > >> hope 2.4.19 will fix it. > >> > >> ======================================================================== > >>===>>===tbsky : 27:05 09:34 : Incident created hi: our > >> company buy a hp lc2000 server and try to install mdk 8.2 on it. it can > >> not pass testing and finally we run mdk 8.1 at it. > >> this time we buy a "certified server" -> hp tc4100. > >> the machine arrived today and it fail again. > >> this machine comes with 2 cpu and 1g ram. > >> to use the memory i must enable highmem(eg: enterprise kernel). and > >> with highmem enabled we got crash under testing. > >> i had report this before to: > >> > >> [EMAIL PROTECTED] > >> [EMAIL PROTECTED] > >> > >> and i saw people at list has same problem. but nobody at mandrake > >> answer these questions. > >> > >> i also wrote several times to > >> > >> [EMAIL PROTECTED] > >> > >> although mdk said that email list is not for supporting, but whom > >> should i write if the hardware database is wrong?? > >> > >> i'll use paid support tomorrow, but before that, i would like to > >> post it last time for anyone who is interested..below is my > >> experience with hp lc2000 last month. and now tc4100 kill me again. > >> > >> ************************************************************************ > >>***>>* > >> ************************************************************************ > >>***>>* > >> ************************************************************************ > >>***>>* > >> > >> Hello: > >> i m glad that i got ur reply :) let me describe my problem > >> and testing procedure in details...i think the problem is > >> causing by kernel, since redhat 7.2 is fine... and i run > >> memtest86 to test memories, which are fine.. > >> > >> 1.) OSB4 DMA bug. it will cause system hang if u leave the ide dma > >> enabled, > >> and u try to read a scratched cd which the cdrom can not read > >> well. redhat 7.2 is fine with dma enabled. > >> > >> 2.) xwindow say mtrr can not use and leave messages below in the > >> syslog: > >> mtrr: Serverworks LE detected. Write-combining disabled. > >> redhat 7.2 is fine. > >> > >> 3.) irq conflict in the linux boot message. at bios boot screen i saw > >> vga using irq 10, lan using irq 9. and cat /proc/pci give me the > >> same result. but boot message say device 00:04:00(lan) want irq > >> 10, which already has irq 9. > >> so i try to lock lan to irq 10 at bios. bios boot screen is fine, > >> vga using irq9, lan using irq 10, cat /proc/pci give me the same. > >> but boot message now tell me device 00:04:00 want irq 9, which > >> already has irq 10... :( > >> > >> 4.) unstable with kernel-enterprise. i test my system with ctcs that > >> comes with mandrake 8.2. and using ctcs default, so it will run > >> "kernel making","memory testing" (with memtest86),and "disk > >> testing" (with badblocks) simultaneously. the system will freeze > >> about 4 hours. the system didn't hang, just freeze, so no more new > >> process. i can switch virtual consoles. i login 3 virtual consoles > >> before testing, one run ctcs,one run top, and one stay at shell > >> prompt. > >> and when freezing: > >> the ctcs clock is still ticking at console 1. > >> the top process is hang at console 2. looking at time at up-left > >> corner, i can know when the system froze. > >> i can type command at console 3, the shell prompt, but it will > >> hang after i hit "enter" if need a new process. > >> > >> there is a clue but i don't understand. during testing of ctcs, > >> sometimes there is error below in the syslog: > >> > >> "kernel: Warning: dev (04:01) tty->count(5) != #fd'(4) in > >> tty-open" > >> > >> the message appear about every 20-30 minutes. and after about 10 > >> messages, the system froze. > >> redhat 7.2 with ctcs comes with MDK 8.2 pass the testing for 12 > >> hours... > >> > >> Regards, > >> tbsky > >> > >> >> Hello: > >> >> i install mandrake 8.2 on a HP lc2000 u3 srever with 1GB ram and 2 > >> >> cpu, > >> >> it is unstable with enterprise kernel. i found a link which is the > >> >> same as my problem: > >> >> > >> >> http://marc.theaimsgroup.com/?l=linux-kernel&m=101770689615279&w=2 > >> >> > >> >> i also try the kernel in cooker but the same. > >> >> and when i start X under 8.2, > >> >> i have no experience with serverworks chipset before. > >> >> does serverworks support linux? should i prevent it in the future? > >> > > >> > Yes. ServerWorks chipsets are supported. I have about 20 Dell PE > >> > 2xx0 (ServerWorks chipset based) servers, two cpus, mostly 1G RAM. > >> > All working fine, distrib kernel from mdk 8.1 and/or from mdk 8.2. > >> > One diffence: i use kernel-secure (it's based on kernel-enterprise). > >> > > >> > IMHO problem is motherboard/memmory not in chipset. All (two) my HP > >> > server are shit hardware, mandrake have healthy problems on it. > >> > > >> > Zdenek Mazanec > >> > >> ======================================================================== > >>===>>===
