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visits member for 2 years, 7 months
seen 9 hours ago

Dec
26
accepted Using dd to cause an error in memory
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.
Dec
26
asked Using dd to cause an error in memory
Oct
19
accepted High memory (user space) and highmem (kernel space)
Aug
11
asked How to debug a buggy running GUI application?
Jul
31
comment How is an Interrupt handled in Linux?
This is an awesome answer. Thanks.
Jul
13
accepted How can I generate /proc/vmcore?
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
asked High memory (user space) and highmem (kernel space)
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?
Jun
29
awarded  Tumbleweed
Jun
22
asked How can I generate /proc/vmcore?
May
17
awarded  Scholar
May
17
comment vmlinuz and initrd not found after building the kernel?
Thanks. You are correct.
May
17
accepted vmlinuz and initrd not found after building the kernel?
May
16
awarded  Supporter
May
16
comment vmlinuz and initrd not found 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 vmlinuz and initrd not found 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.
May
16
awarded  Student