Since the original centos 8 is going away (support-wise) in less than 3 months, should we just convert all workers to stream and move on?

Alex

On Mon, 4 Oct 2021 at 18:27, Michael Halstead <mhalstead@linuxfoundation.org> wrote:

This error was fixed upstream https://bugzilla.redhat.com/show_bug.cgi?id=1975562 kernel 4.18.0-325.x which has landed in CentOS8 Stream on centos8-ty-2 but not plain CentOS8 where the newest kernel is still at 4.18.0-305.x.

I'll reboot into the older 4.18.0-240.15 kernel again on centos8-ty-1 as a fix for now. 

On Tue, Sep 28, 2021 at 6:12 PM Anuj Mittal <anuj.mittal@intel.com> wrote:

Did we find out the reason why this was happening? I have started
getting this error on Centos-8 while building hardknott.

https://autobuilder.yoctoproject.org/typhoon/#/builders/63/builds/4045

Thanks,

Anuj

On Wed, 2021-06-16 at 23:45 +0100, Richard Purdie wrote:
> On Sun, 2021-06-06 at 21:51 +0200, Alexander Kanavin wrote:
> > On Sun, 6 Jun 2021 at 01:10, Richard Purdie
> > <richard.purdie@linuxfoundation.org> wrote:
> > > I tried again with the autobuilder, still fails:
> > >
> > > https://autobuilder.yoctoproject.org/typhoon/#/builders/48/builds/3516
> > >
> > > so whatever it is, it is still "live".
> > >
> >
> >
> > I did some digging. The issue happens when:
> > - host is centos8
> > - SDKMACHINE is i686 (e.g. cmake is 32 bit)
> >
> > Then there's a failing syscall attempting to set file times:
> > utimensat_time64(AT_FDCWD, "../install/usr/local/lib/cmake/assimp-
> > 4.1/assimp-config.cmake",
> > [{tv_sec=1622966723, tv_nsec=6319439026193432576},
> > {tv_sec=1622966579, tv_nsec=17840053692309438464}], 0) = -1
> > EINVAL (Invalid argument)
> >
> > On latest Fedora, there's no issue:
> > utimensat_time64(AT_FDCWD, "../install2/usr/local/lib/cmake/assimp-
> > 4.1/assimp-config.cmake",
> > [{tv_sec=1623002886, tv_nsec=6369724778172907520},
> > {tv_sec=1623002886, tv_nsec=17839174083007217664}], 0) = 0
> >
> > utimensat_time64 only appeared with 5.1 kernels, however, 4.18 should
> > be returning ENOSYS in that case
> > probably?
>
> I hacked up a quick test bit of code (which makes assumptions 
> about 32 bit):
>
> #include <unistd.h>
> #include <sys/syscall.h>
> #include <sys/types.h>
> #include <sys/stat.h>
> #include <fcntl.h>
> #include <stdio.h>
>
> struct timespec64 {
>     long long           tv_sec;                 /* seconds */
>     long long           tv_nsec;                /* nanoseconds */
> };
>
> int main() {
>   int fd = open("foo", O_RDWR | O_CREAT, 0644);
>   write(fd, "foo", 3);
>   struct timespec64 times[2] = {};
>   times[0].tv_sec = 1622966723;
>   times[0].tv_nsec = 631943;
>   times[1].tv_sec = 1622966579;
>   times[1].tv_nsec = 178400;
>   int rc = syscall(SYS_utimensat_time64, fd, NULL, &times[0], 0);
>   printf("rc=%d\n", rc);
>   close(fd);
>   return rc;
> }
>
> built with "gcc -m32 test-syscall.c -o test" and run with "strace
> ./test".
> This works on all the systems I tried it in. As does:
>
>
>   times[0].tv_sec = 1;
>   times[0].tv_nsec = 2;
>   times[1].tv_sec = 3;
>   times[1].tv_nsec = 4;
>
> however if you set (and ignore the compiler warning):
>
>   times[0].tv_sec = 1622966723;
>   times[0].tv_nsec = 6319439026193432576;
>   times[1].tv_sec = 1622966579;
>   times[1].tv_nsec = 17840053692309438464;
>
> then you see EINVAL on the centos system but not on my ubuntu one. It
> will
> do that until you reduce the values of tv_nsec right now. So it seems
> most 
> systems accept large tv_nsec values but the Centos one does not.
>
> I think tv_nsec may be being clamped to LONG_MAX of 4 bytes but should
> be 
> a LONG_LONG_MAX of 8 bytes on a 32 bit since the field is a 64 bit
> long.
>
> Michael: Hopefully that gives you something to raise with them?
>
> Cheers,
>
> Richard
>
>
>
>
>
>
>
>


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Michael Halstead

Linux Foundation / Yocto Project

Systems Operations Engineer