Hi Prabhakar, On Tue, Nov 19, 2019 at 12:02:46PM +0530, Prabhakar Kushwaha wrote: > Hi Akashi, > > On Fri, Nov 15, 2019 at 7:29 AM AKASHI Takahiro > <takahiro.akashi@xxxxxxxxxx> wrote: > > > > Bhupesh, > > > > On Fri, Nov 15, 2019 at 01:24:17AM +0530, Bhupesh Sharma wrote: > > > Hi Akashi, > > > > > > On Wed, Nov 13, 2019 at 12:11 PM AKASHI Takahiro > > > <takahiro.akashi@xxxxxxxxxx> wrote: > > > > > > > > Hi Bhupesh, > > > > > > > > Do you have a corresponding patch for userspace tools, > > > > including crash util and/or makedumpfile? > > > > Otherwise, we can't verify that a generated core file is > > > > correctly handled. > > > > > > Sure. I am still working on the crash-utility related changes, but you > > > can find the makedumpfile changes I posted a couple of days ago here > > > (see [0]) and the github link for the makedumpfile changes can be seen > > > via [1]. > > > > > > I will post the crash-util changes shortly as well. > > > Thanks for having a look at the same. > > > > Thank you. > > I have tested my kdump patch with a hacked version of crash > > where VA_BITS_ACTUAL is calculated from tcr_el1_t1sz in vmcoreinfo. > > > > I also did hack to calculate VA_BITS_ACTUAL is calculated from > tcr_el1_t1sz in vmcoreinfo. Now i am getting error same as mentioned > by you in other thread last month. > https://www.mail-archive.com/crash-utility@xxxxxxxxxx/msg07385.html > > how this error was overcome? > > I am using > - crashkernel: https://github.com/crash-utility/crash.git commit: > babd7ae62d4e8fd6f93fd30b88040d9376522aa3 > and > - Linux: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git > commit: af42d3466bdc8f39806b26f593604fdc54140bcb # I am rather reluctant to cross-post non-kernel patch to lkml/lakml, The only change I made to crash utility was: ===8<=== diff --git a/arm64.c b/arm64.c index 5ee5f1a29a41..84e40aeb561b 100644 --- a/arm64.c +++ b/arm64.c @@ -3857,8 +3857,8 @@ arm64_calc_VA_BITS(void) } else if (ACTIVE()) error(FATAL, "cannot determine VA_BITS_ACTUAL: please use /proc/kcore\n"); else { - if ((string = pc->read_vmcoreinfo("NUMBER(VA_BITS_ACTUAL)"))) { - value = atol(string); + if ((string = pc->read_vmcoreinfo("NUMBER(tcr_el1_t1sz)"))) { + value = 64 - strtoll(string, NULL, 0); free(string); machdep->machspec->VA_BITS_ACTUAL = value; machdep->machspec->VA_BITS = value; ===>8=== Thanks, -Takahiro Akashi > --pk _______________________________________________ kexec mailing list kexec@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/kexec
