Something is broken in low-level components, processes segfault

[Igor Gnatenko]

https://apps.fedoraproject.org/koschei/build/5700914

  process didn't exit successfully: `/usr/bin/rustc --crate-name
glib_sys src/lib.rs --color never --crate-type lib
--emit=dep-info,link -C opt-level=3 -C metadata=20d7ee6da134c60a -C
extra-filename=-20d7ee6da134c60a --out-dir
/builddir/build/BUILD/glib-sys-0.6.0/target/release/deps -L
dependency=/builddir/build/BUILD/glib-sys-0.6.0/target/release/deps
--extern 
bitflags=/builddir/build/BUILD/glib-sys-0.6.0/target/release/deps/libbitflags-056f832aae1b729d.rlib
--extern 
libc=/builddir/build/BUILD/glib-sys-0.6.0/target/release/deps/liblibc-626066f325dbf1d3.rlib
-Copt-level=3 -Cdebuginfo=2 -Clink-arg=-Wl,-z,relro,-z,now -l
glib-2.0` (signal: 11, SIGSEGV: invalid memory reference)

There were just libxcrypt/glibc/llvm/annobin updates, so it's hard to
guess what exactly is broken.

Help is very much appreciated.
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Re: Something is broken in low-level components, processes segfault

[Petr Pisar]

On 2018-11-21, Igor Gnatenko  wrote:
> https://apps.fedoraproject.org/koschei/build/5700914
>
>   process didn't exit successfully: `/usr/bin/rustc --crate-name
> glib_sys src/lib.rs --color never --crate-type lib
> --emit=dep-info,link -C opt-level=3 -C metadata=20d7ee6da134c60a -C
> extra-filename=-20d7ee6da134c60a --out-dir
> /builddir/build/BUILD/glib-sys-0.6.0/target/release/deps -L
> dependency=/builddir/build/BUILD/glib-sys-0.6.0/target/release/deps
> --extern 
> bitflags=/builddir/build/BUILD/glib-sys-0.6.0/target/release/deps/libbitflags-056f832aae1b729d.rlib
> --extern 
> libc=/builddir/build/BUILD/glib-sys-0.6.0/target/release/deps/liblibc-626066f325dbf1d3.rlib
> -Copt-level=3 -Cdebuginfo=2 -Clink-arg=-Wl,-z,relro,-z,now -l
> glib-2.0` (signal: 11, SIGSEGV: invalid memory reference)
>
> There were just libxcrypt/glibc/llvm/annobin updates, so it's hard to
> guess what exactly is broken.
>
It's triggered by upgrading glibc from 2.28.9000-17.fc30 to
2.28.9000-18.fc30.

-- Petr
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Re: Something is broken in low-level components, processes segfault

[Florian Weimer]

* Igor Gnatenko:

> https://apps.fedoraproject.org/koschei/build/5700914
>
>   process didn't exit successfully: `/usr/bin/rustc --crate-name
> glib_sys src/lib.rs --color never --crate-type lib
> --emit=dep-info,link -C opt-level=3 -C metadata=20d7ee6da134c60a -C
> extra-filename=-20d7ee6da134c60a --out-dir
> /builddir/build/BUILD/glib-sys-0.6.0/target/release/deps -L
> dependency=/builddir/build/BUILD/glib-sys-0.6.0/target/release/deps
> --extern 
> bitflags=/builddir/build/BUILD/glib-sys-0.6.0/target/release/deps/libbitflags-056f832aae1b729d.rlib
> --extern 
> libc=/builddir/build/BUILD/glib-sys-0.6.0/target/release/deps/liblibc-626066f325dbf1d3.rlib
> -Copt-level=3 -Cdebuginfo=2 -Clink-arg=-Wl,-z,relro,-z,now -l
> glib-2.0` (signal: 11, SIGSEGV: invalid memory reference)
>
> There were just libxcrypt/glibc/llvm/annobin updates, so it's hard to
> guess what exactly is broken.

This is .  I will
revert the most likely upstream patch that causes this.

Sorry for the inconvenience.

Thanks,
Florian
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Re: Something is broken in low-level components, processes segfault

[Florian Weimer]

* Florian Weimer:

> * Igor Gnatenko:
>
>> https://apps.fedoraproject.org/koschei/build/5700914
>>
>>   process didn't exit successfully: `/usr/bin/rustc --crate-name
>> glib_sys src/lib.rs --color never --crate-type lib
>> --emit=dep-info,link -C opt-level=3 -C metadata=20d7ee6da134c60a -C
>> extra-filename=-20d7ee6da134c60a --out-dir
>> /builddir/build/BUILD/glib-sys-0.6.0/target/release/deps -L
>> dependency=/builddir/build/BUILD/glib-sys-0.6.0/target/release/deps
>> --extern 
>> bitflags=/builddir/build/BUILD/glib-sys-0.6.0/target/release/deps/libbitflags-056f832aae1b729d.rlib
>> --extern 
>> libc=/builddir/build/BUILD/glib-sys-0.6.0/target/release/deps/liblibc-626066f325dbf1d3.rlib
>> -Copt-level=3 -Cdebuginfo=2 -Clink-arg=-Wl,-z,relro,-z,now -l
>> glib-2.0` (signal: 11, SIGSEGV: invalid memory reference)
>>
>> There were just libxcrypt/glibc/llvm/annobin updates, so it's hard to
>> guess what exactly is broken.
>
> This is .  I will
> revert the most likely upstream patch that causes this.
>
> Sorry for the inconvenience.

Worked around in glibc-2.28.9000-19.fc30 by reverting the broken patch.
I think I've also found and fixed the actual bug.  A patch is pending
upstream review.

Thanks,
Florian
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