Linux 2.6.22.7 Machine Check Exception

Hi, i encountered the following machine check exceptions (and hangs) with 2.6.22.7 on an Dual Core-2 Xeon System. It occurs if i try to use the PCI-X Intel Gigabit Ethernet card after some minutes: CPU 3: Machine Check Exception 0005 Bank 0: b2401400 Bank 5: b20012102400

2.6.22.7 reboots if PCI-X eth card is used for capture

Hi, i run a machine with 4 dual gigabit ethernet cards utilizing 2.6.22.7. All cards are PCI-E, one card is PCI-X, all Gigabit Ethernet from Intel. This is working fine and stable if only the PCI-E cards are used. If i try to capture packets on the PCI-X card, the machine reboots after some secon

Re: howto boost write(2) performance?

On Tue, 2007-10-09 at 16:56 +0200, Andi Kleen wrote: > Michael Stiller <[EMAIL PROTECTED]> writes: > > > > The write(2) performance is not good enough, the writer threads take to > > much time, and i ask you for ideas, howto to boost the write > > performance

Re: howto boost write(2) performance?

> > The kernel really cannot sustain 125MB/s? I assume the disk > array is capable? Yes, the array should be capable, LSI controller U320, SATA disks inside the array. > Where is the bottleneck? Does it keep all disks busy, or are > the CPUs overloaded? I'm not sure where the bottleneck is. C

howto boost write(2) performance?

Hi list, i'm developing an application (in C) which needs to write about 1Gbit/s (125Mb/s) to a disk array attached via U320 SCSI. It runs on Dual Core 2 Xeons @2Ghz utilizing kernel 2.6.22.7. I buffer the data in (currently 4) 400Mb buffers and use write(2) in a dedicated thread to write them

Re: WARNING native_smp_call_function mask 2.6.22.6 SMP on Single CPU System

On Thu, 2007-09-06 at 13:00 +0200, Michael Stiller wrote: > Hi, > > i get the following warning if i call vfree some memory allocated by > vmalloc on a single cpu machine running 2.6.22.6 SMP: > > WARNING: at arch/i386/kernel/smp.c:559 native_smp_call_function_mask() Resolv

WARNING native_smp_call_function mask 2.6.22.6 SMP on Single CPU System

Hi, i get the following warning if i call vfree some memory allocated by vmalloc on a single cpu machine running 2.6.22.6 SMP: WARNING: at arch/i386/kernel/smp.c:559 native_smp_call_function_mask() [] native_smp_call_function_mask+0x145/0x14a [] idr_remove+0x102/0x163 [] do_flush_tlb_all+0x0/0

Re: 2.2.19 + reiserfs 3.5.32 nfsd wait_on_buffer/down_failed

> > we run a nfs server utilizing 2.2.19 + ReiserFS version 3.5.32 on a > > P 3 550 machine. Disk subsystem is a GDT7518RN using 4 UW disks as raid 5 > > device. After upgrading from 2.2.17 + reiserfs to 2.2.19 we experience > > many (very much more than with 2.2.17) problems with our nfs clients

2.2.19 + reiserfs 3.5.32 nfsd wait_on_buffer/down_failed

Hi, we run a nfs server utilizing 2.2.19 + ReiserFS version 3.5.32 on a P 3 550 machine. Disk subsystem is a GDT7518RN using 4 UW disks as raid 5 device. After upgrading from 2.2.17 + reiserfs to 2.2.19 we experience many (very much more than with 2.2.17) problems with our nfs clients about 12 (l

Re: Broken gcc ?

> > I do all my kernel development with gcc 2.96-69 and 2.96-81 (the errata > 7.0 and the 7.1 gcc). 2.96-81 will not compile sgi's xfs patches due to some cpp macros using ##. Use kgcc supplied with rh7 for that. Cheers, -Michael -- x(f,s,c)char *s;{return f&1 ? *s ? *s-c ? x(f,++s,c) :7[s]

[patch] 2.2.18 serial console sysrq backport

Hi *, i just backported the 2.4.x serial.c changes to enable MAGIC_SYSRQ via serial console on 2.2.18. Patch is working ok so far, i have included it here, maybe it is useful for someone. You need to enable CONFIG_SERIAL_CONSOLE && CONFIG_MAGIC_SYSRQ to use it. To trigger MAGIC_SYSRQ send a "brea