When i try to makedumpfile without vmcorefile, it complains that "/tmp/vmcoreinfo no such file or directory" and fails to collect the dump. >From the README it appears to me that makedumpfile can get vmcoreinfo from /proc/vmcore Is there any special CONFIG needed to support this? Thank you in advance! Regards, Manty On Fri, Jun 11, 2021 at 2:27 PM manty kuma <mantykuma@xxxxxxxxx> wrote: > > > libdw-dev libelf-dev zlib1g-dev libbz2-dev > These packages helped. I am able to compile both elfutils and makedumpfile now. > Thank you. > > Just one more question I have. > > I am using linux kernel v5.10 > Is it necessary to generate a "vmcoreinfo" file before hand and provide it to `makedumpfile`? or can it get ir from `/proc/vmcore`? > > Regards, > Manty > > On Fri, Jun 11, 2021 at 2:00 PM HAGIO KAZUHITO(萩尾 一仁) <k-hagio-ab@xxxxxxx> wrote: >> >> -----Original Message----- >> > Thank you. >> > for example, i am trying to compile: elfutils-0.182 package downloaded >> > from https://sourceware.org/elfutils/ftp/0.182/ >> > After successfully configuring it, make fails with following error. >> >> Ah, I thought by mistake that you failed to compile makedumpfile. >> Probably you should ask it to the elfutils community. >> >> btw, if you can use makedumpfile with dynamic libraries, maybe you >> can use the distribution's packages without building elfutils. >> I'm not familiar with Debian/Ubuntu, but I built a makedumpfile on >> an Ubuntu machine once with the following packages: >> libdw-dev libelf-dev zlib1g-dev libbz2-dev >> and "make LINKTYPE=dynamic", please see FAQ.002 in README. >> >> Kazu >> >> > >> > ---------------------------------------- >> > Making all in libdwfl >> > CC zstd.o >> > In file included from zstd.c:4:0: >> > gzip.c: In function ‘__libdw_unzstd’: >> > gzip.c:278:39: error: passing argument 1 of ‘ZSTD_decompressStream’ >> > from incompatible pointer type [-Werror=incompatible-pointer-types] >> > result = ZSTD_decompressStream (dctx, &output, &input); >> > ^~~~ >> > In file included from gzip.c:53:0, >> > from zstd.c:4: >> > /usr/include/zstd.h:308:20: note: expected ‘ZSTD_DStream * {aka struct >> > ZSTD_DStream_s *}’ but argument is of type ‘ZSTD_DCtx * {aka struct >> > ZSTD_DCtx_s *}’ >> > ZSTDLIB_API size_t ZSTD_decompressStream(ZSTD_DStream* zds, >> > ZSTD_outBuffer* output, ZSTD_inBuffer* input); >> > ^~~~~~~~~~~~~~~~~~~~~ >> > cc1: all warnings being treated as errors >> > Makefile:681: recipe for target 'zstd.o' failed >> > make[2]: *** [zstd.o] Error 1 >> > ---------------------------------------- >> > >> > Seems like the configure file is not checking for specific version of >> > libzstd-dev and it is not compatible with my current libzstd-dev >> > My current version is as follows: >> > --- >> > $ apt-show-versions libzstd-dev >> > libzstd-dev:amd64/stretch 1.1.2-1+deb9u1 uptodate >> > --- >> > >> > Thank you. >> > >> > Regards, >> > Manty >> > On Fri, Jun 11, 2021 at 10:13 AM HAGIO KAZUHITO(萩尾 一仁) >> > <k-hagio-ab@xxxxxxx> wrote: >> > > >> > > Hi Manty, >> > > >> > > -----Original Message----- >> > > > What version of elfutils is needed by `makedumpfile`? >> > > > elfutils-0.144 is mentioned in README. >> > > > I tried this one but the compilation is broken. >> > > > >> > > > https://sourceware.org/elfutils/ftp/0.144/ >> > > > >> > > > Should I try to use the latest one instead? >> > > >> > > It could be built with elfutils-0.144 or later at the point of v1.6.7, and >> > > I can build the latest makedumpfile with elfutils-0.148, 0.164, 0.182 on >> > > some RHEL environments on hand with "make LINKTYPE=dynamic". >> > > >> > > What command do you use to build? and what error do you see? >> > > >> > > Thanks, >> > > Kazu >> > > _______________________________________________ kexec mailing list kexec@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/kexec
