Re: Random memory corruption with v5.2

[Atish Patra <Atish.Patra@wdc.com>]

On Thu, 2019-08-15 at 13:52 -0700, Atish Patra wrote:
> On Tue, 2019-07-30 at 08:56 +0200, Andreas Schwab wrote:
> > On Jul 30 2019, David Abdurachmanov <david.abdurachmanov@gmail.com>
> > wrote:
> > 
> > > On Mon, Jul 29, 2019 at 1:51 PM Andreas Schwab <schwab@suse.de>
> > > wrote:
> > > > Since switching to 5.2 kernels I'm seeing random crashes and
> > > > misbehaviors on the HiFive, for example while building gcc or
> > > > glibc.
> > > > Perhaps missing TLB flushes?
> > > 
> > > Do you have some examples of crashes?
> > 
> > While building glibc:
> > 
> > an_ES.UTF-8...realloc(): invalid pointer
> > /bin/sh: line 1:  7841 Aborted                 (core dumped)
> > I18NPATH=. GCONV_PATH=/home/abuild/rpmbuild/BUILD/glibc-2.29/cc-
> > base/iconvdata LC_ALL=C /home/abuild/rpmbuild/BUILD/glibc-2.29/cc-
> > base/elf/ld-linux-riscv64-lp64d.so.1 --library-path
> > /home/abuild/rpmbuild/BUILD/glibc-2.29/cc-
> > base:/home/abuild/rpmbuild/BUILD/glibc-2.29/cc-
> > base/math:/home/abuild/rpmbuild/BUILD/glibc-2.29/cc-
> > base/elf:/home/abuild/rpmbuild/BUILD/glibc-2.29/cc-
> > base/dlfcn:/home/abuild/rpmbuild/BUILD/glibc-2.29/cc-
> > base/nss:/home/abuild/rpmbuild/BUILD/glibc-2.29/cc-
> > base/nis:/home/abuild/rpmbuild/BUILD/glibc-2.29/cc-
> > base/rt:/home/abuild/rpmbuild/BUILD/glibc-2.29/cc-
> > base/resolv:/home/abuild/rpmbuild/BUILD/glibc-2.29/cc-
> > base/mathvec:/home/abuild/rpmbuild/BUILD/glibc-2.29/cc-
> > base/support:/home/abuild/rpmbuild/BUILD/glibc-2.29/cc-base/nptl
> > /home/abuild/rpmbuild/BUILD/glibc-2.29/cc-base/locale/localedef
> > $flags --alias-file=../intl/locale.alias -i locales/$input -f
> > charmaps/$charset --prefix=/home/abuild/rpmbuild/BUILDROOT/glibc-
> > 2.29-0.riscv64 $locale
> > make[2]: *** [Makefile:422: install-archive-an_ES.UTF-8/UTF-8]
> > Error
> > 134
> > 
> > While building gcc:
> > 
> > ../../gcc/ada/exp_aggr.adb: In function
> > 'Exp_Aggr.Expand_N_Aggregate':
> > ../../gcc/ada/exp_aggr.adb:5311:21: warning: 'Csiz' may be used
> > uninitialized in this function [-Wmaybe-uninitialized]
> > ../../gcc/ada/exp_aggr.adb:5220:10: note: 'Csiz' was declared here
> > +===========================GNAT BUG
> > DETECTED==============================+
> > > 10.0.0 20190727 (experimental) [trunk revision 273844] (riscv64-
> > > suse-linux) |
> > > Storage_Error stack overflow or erroneous memory
> > > access                  |
> > > Error detected at
> > > output.ads:39:8                                        |
> > realloc(): invalid pointer
> > 
> > raised PROGRAM_ERROR : unhandled signal
> > make[3]: *** [../../gcc/ada/gcc-interface/Make-lang.in:140:
> > ada/exp_ch3.o] Error 1
> > 
> > Andreas.
> > 
> 
> Can you give it a try with following patch in OpenSBI & Kernel ?
> 
> Linux kernel:
> http://lists.infradead.org/pipermail/linux-riscv/2019-August/005889.html
> 
> OpenSBI:
> http://lists.infradead.org/pipermail/opensbi/2019-August/000386.html
> 
> In my testing, I no longer the stress-ng error or glibc local install
> issue if I use following command.
> 
> sudo make -j8 localedata/install-locale-files
> DESTDIR=/home/atish/glibc/build/install
> 
> 
> I still see segmentation fault if I use a archieve locale install
> command.
> 
> sudo make -j8 localedata/install-locales
> DESTDIR=/home/atish/glibc/build/install
> 

I am also able to run above archive locale install command successfully
multiple times after removing the corrupted locale-archive files
present in install path. 

Let me know if it works for you as well. 

I am now running stress-ng & parallel glibc locale install together to
fully stress the system.

Regards,
Atish
> But the error dump doesn't contain remap() error. Just a segmentation
> fault which may be due to userspace or just different version of old
> tlbflush problem.
> 
> 
> Regards,
> Atish
> 

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