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visits member for 1 year, 11 months
seen Apr 14 at 8:08

Jul
5
comment What does hierarchy support do in cgroup?
@Michael Kjörling thanks I will ask the moderator to move my question next time. Also, what you said make sense.
May
15
comment DHCP configuration for iPXE
Sorry I was a bit unclear. But what I want is to configure iPXE to issue its DHCP discover message to include more options, so my DHCP server can give out those options in its response message.
Dec
26
comment Using dd to cause an error in memory
I see. Thanks. In the document (the Nehalem part), it mentions about using address match for error injection . What does it do? Does it mean, by using address match, it will cause an error at that specific physical memory address that is specified in address match register? And if edac hardware is working, when that faulty memory address is read, it should correct the error. Is that right?
Dec
26
comment Using dd to cause an error in memory
So how does dd trigger a memory error exactly? I understand the inject things are for the configuration of error injection registers: lxr.linux.no/#linux+v3.0.42/drivers/edac/i7core_edac.c#L963 . The values the inject interfaces will be anded with each other and write to a register. But I don't understand how using dd can trigger error in memory.
Jul
31
comment How is an Interrupt handled in Linux?
This is an awesome answer. Thanks.
Jul
12
comment How can I generate /proc/vmcore?
Thanks. Our system uses SLES (SUSE Linux Enterprise Server), and it generates vmcore. I just want to know how it is generated in a standard way. But since you mention this is kernel specific, I will look into the specific documents.
Jul
2
comment What are high memory and low memory on Linux?
This is old and I'm not sure you're around here. But I want to ask one thing: the reserved 128MB in kernel space (for high memory access), is it all the references of user-space memory area? So, a kernel process can access any user space by refer to this area, right?
May
17
comment No vmlinuz and initrd after building the kernel?
Thanks. You are correct.
May
16
comment No vmlinuz and initrd after building the kernel?
I've just checked the config again. It seems I have not enabled loadable kernel module support. I thought it is default. I will try to compile again and will notify when it's done.
May
16
comment No vmlinuz and initrd after building the kernel?
I compiled it in OpenSUSE (however, I downloaded the latest source from kernel.org). After make menuconfig, I typed make and let it does the job.