在 2019年01月15日 04:49, Dave Anderson 写道:
>
>
> - Original Message -
>> On Mon, Jan 14, 2019 at 03:26:32PM -0500, Dave Anderson wrote:
>>> No. It needs *both* the vmlinux file and the vmcore file in order to read
>>> kernel
>>> virtual memory, so just having a kernel virtual address is insu
On Mon, Jan 14, 2019 at 03:49:14PM -0500, Dave Anderson wrote:
> Yeah, I've been watching the thread, and the document looks fine to me.
> It's just that when I saw the discussion of this one being removed that
> I felt the need to respond... ;-)
Good. :-)
Ok, I've amended the init_uts_ns.name.r
在 2019年01月14日 17:15, Borislav Petkov 写道:
> On Mon, Jan 14, 2019 at 01:30:30PM +0800, lijiang wrote:
>> I noticed that the checkpatch was coded in Perl. But i am not familiar with
>> the Perl program language, that would be beyond my ability to do this, i have
>> to learn the Perl program language s
- Original Message -
> On Mon, Jan 14, 2019 at 03:26:32PM -0500, Dave Anderson wrote:
> > No. It needs *both* the vmlinux file and the vmcore file in order to read
> > kernel
> > virtual memory, so just having a kernel virtual address is insufficient.
> >
> > So it's a chicken-and-egg
On Mon, Jan 14, 2019 at 03:26:32PM -0500, Dave Anderson wrote:
> No. It needs *both* the vmlinux file and the vmcore file in order to read
> kernel
> virtual memory, so just having a kernel virtual address is insufficient.
>
> So it's a chicken-and-egg situation. This particular --osrelease opt
- Original Message -
> On Mon, Jan 14, 2019 at 03:07:33PM -0500, Dave Anderson wrote:
> > That's what it *does* utilize -- it takes a standalone vmcore dumpfile, and
> > pulls out the OSRELEASE string from it, so that a user can determine what
> > vmlinux file should be used with that vm
On Mon, Jan 14, 2019 at 03:07:33PM -0500, Dave Anderson wrote:
> That's what it *does* utilize -- it takes a standalone vmcore dumpfile, and
> pulls out the OSRELEASE string from it, so that a user can determine what
> vmlinux file should be used with that vmcore for normal crash analysis.
And th
- Original Message -
> On Mon, Jan 14, 2019 at 02:36:47PM -0500, Dave Anderson wrote:
> > There's no reading of the dumpfile's memory involved, and that being the
> > case,
> > the vmlinux file is not utilized. That's the whole point of the crash
> > option, i.e.,
> > taking a vmcore
On Mon, Jan 14, 2019 at 02:36:47PM -0500, Dave Anderson wrote:
> There's no reading of the dumpfile's memory involved, and that being the case,
> the vmlinux file is not utilized. That's the whole point of the crash
> option, i.e.,
> taking a vmcore file, and trying to determine what kernel shoul
- Original Message -
> On Mon, Jan 14, 2019 at 01:58:32PM -0500, Dave Anderson wrote:
> > Preferably it would be left as-is. The crash utility has a "crash
> > --osrelease vmcore"
> > option that only looks at the dumpfile header, and just dump the string.
> > With respect
> > to compr
On Mon, Jan 14, 2019 at 01:58:32PM -0500, Dave Anderson wrote:
> Preferably it would be left as-is. The crash utility has a "crash
> --osrelease vmcore"
> option that only looks at the dumpfile header, and just dump the string.
> With respect
> to compressed kdumps, crash could alternatively lo
- Original Message -
> On Mon, Jan 14, 2019 at 05:48:48PM +, Kazuhito Hagio wrote:
> > As for makedumpfile, it will be not impossible to remove the
> > init_uts_ns.name.relase (OSRELEASE), but some fixes are needed.
> > Because historically OSRELEASE has been a kind of a mandatory en
On Mon, Jan 14, 2019 at 05:48:48PM +, Kazuhito Hagio wrote:
> As for makedumpfile, it will be not impossible to remove the
> init_uts_ns.name.relase (OSRELEASE), but some fixes are needed.
> Because historically OSRELEASE has been a kind of a mandatory entry
> in vmcoreinfo from the beginning o
On 1/11/2019 7:33 AM, Borislav Petkov wrote:
> On Thu, Jan 10, 2019 at 08:19:43PM +0800, Lianbo Jiang wrote:
>> +init_uts_ns.name.release
>> +
>> +
>> +The version of the Linux kernel. Used to find the corresponding source
>> +code from which the kernel has been built.
>> +
On Mon, Jan 14, 2019 at 01:30:30PM +0800, lijiang wrote:
> I noticed that the checkpatch was coded in Perl. But i am not familiar with
> the Perl program language, that would be beyond my ability to do this, i have
> to learn the Perl program language step by step. :-)
You could give it a try - it
On Mon, Jan 14, 2019 at 09:52:14AM +0800, lijiang wrote:
> I would like to remove this variable and post again.
No, you should remove the vmcoreinfo export too:
kernel/crash_core.c:398:VMCOREINFO_OSRELEASE(init_uts_ns.name.release);
after making sure userspace is not using it and *then*
在 2019年01月11日 22:56, Borislav Petkov 写道:
> On Thu, Jan 10, 2019 at 08:19:43PM +0800, Lianbo Jiang wrote:
>> This document lists some variables that export to vmcoreinfo, and briefly
>> describles what these variables indicate. It should be instructive for
>> many people who do not know the vmcorein
在 2019年01月11日 20:33, Borislav Petkov 写道:
> On Thu, Jan 10, 2019 at 08:19:43PM +0800, Lianbo Jiang wrote:
>> +init_uts_ns.name.release
>> +
>> +
>> +The version of the Linux kernel. Used to find the corresponding source
>> +code from which the kernel has been built.
>> +
>
>
On Thu, Jan 10, 2019 at 08:19:43PM +0800, Lianbo Jiang wrote:
> This document lists some variables that export to vmcoreinfo, and briefly
> describles what these variables indicate. It should be instructive for
> many people who do not know the vmcoreinfo.
>
> Suggested-by: Borislav Petkov
> Sign
On Thu, Jan 10, 2019 at 08:19:43PM +0800, Lianbo Jiang wrote:
> +init_uts_ns.name.release
> +
> +
> +The version of the Linux kernel. Used to find the corresponding source
> +code from which the kernel has been built.
> +
...
> +
> +init_uts_ns
> +---
> +
> +This i
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