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| Started by | Yaowei Bai <bywxiaobai@163.com> |
|---|---|
| First post | 2015-08-22 09:00 +0200 |
| Last post | 2015-08-22 20:00 +0200 |
| Articles | 2 — 2 participants |
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[PATCH] Documentation: add 'crashkernel=auto' entry into kernel-parameters.txt Yaowei Bai <bywxiaobai@163.com> - 2015-08-22 09:00 +0200
Re: [PATCH] Documentation: add 'crashkernel=auto' entry into kernel-parameters.txt Randy Dunlap <rdunlap@infradead.org> - 2015-08-22 20:00 +0200
| From | Yaowei Bai <bywxiaobai@163.com> |
|---|---|
| Date | 2015-08-22 09:00 +0200 |
| Subject | [PATCH] Documentation: add 'crashkernel=auto' entry into kernel-parameters.txt |
| Message-ID | <q0aWt-2Y7-15@gated-at.bofh.it> |
There is no 'crashkernel=auto' entry in kernel-parameters.txt, borrow it from kexec-kdump-howto.txt file in the kexec-tools-2.0.0 package. Signed-off-by: Yaowei Bai <bywxiaobai@163.com> --- Documentation/kernel-parameters.txt | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index 1d6f045..4da77fa 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -797,6 +797,15 @@ bytes respectively. Such letter suffixes can also be entirely omitted. It will be ignored when crashkernel=X,high is not used or memory reserved is below 4G. + crashkernel=auto + This specification allows the kernel to decide how much + meory to reserve for the purposes of kdump. It will make + this determination based on the amount of memory you have + in your system, and scale the allocation accordingly. + Note that if you have less than 4Gb of memory in your system, + this specification will opt to not allocate any memory for + the purposes of kdump. + cs89x0_dma= [HW,NET] Format: <dma> -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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| From | Randy Dunlap <rdunlap@infradead.org> |
|---|---|
| Date | 2015-08-22 20:00 +0200 |
| Subject | Re: [PATCH] Documentation: add 'crashkernel=auto' entry into kernel-parameters.txt |
| Message-ID | <q0lfb-Ow-13@gated-at.bofh.it> |
| In reply to | #1211405 |
On 08/21/15 23:51, Yaowei Bai wrote: > There is no 'crashkernel=auto' entry in kernel-parameters.txt, borrow it > from kexec-kdump-howto.txt file in the kexec-tools-2.0.0 package. > > Signed-off-by: Yaowei Bai <bywxiaobai@163.com> > --- > Documentation/kernel-parameters.txt | 9 +++++++++ > 1 file changed, 9 insertions(+) > > diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt > index 1d6f045..4da77fa 100644 > --- a/Documentation/kernel-parameters.txt > +++ b/Documentation/kernel-parameters.txt > @@ -797,6 +797,15 @@ bytes respectively. Such letter suffixes can also be entirely omitted. > It will be ignored when crashkernel=X,high is not used > or memory reserved is below 4G. > > + crashkernel=auto > + This specification allows the kernel to decide how much > + meory to reserve for the purposes of kdump. It will make memory > + this determination based on the amount of memory you have > + in your system, and scale the allocation accordingly. > + Note that if you have less than 4Gb of memory in your system, > + this specification will opt to not allocate any memory for > + the purposes of kdump. > + > cs89x0_dma= [HW,NET] > Format: <dma> > > -- ~Randy -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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