regression: Bug 215601 - gcc segv at startup on ia64

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Hi, this is your Linux kernel regression tracker.

I noticed a regression report in bugzilla.kernel.org that afaics nobody
acted upon since it was reported about a week ago, that's why I'm hereby
forwarding it to the lists and the relevant people. To quote
https://bugzilla.kernel.org/show_bug.cgi?id=215601 :

> On ia64, after 5f501d555653f8968011a1e65ebb121c8b43c144, the gcc
> binary crashes with SIGSEGV at startup (i.e., during ELF loading).
> Only gcc exhibits the crash (including g++, etc), other toolchain
> components (such as ld, ldd, etc) do not, and neither does any other
> binary from what I can tell.  I also haven't observed the issue on
> any other architecture.
> 
> Reverting this commit resolves the issue up to and including git tip,
> with no (visible) issues.
> 
> Hardware:  HP Integrity rx2800 i2 Kernel config attached.

Could somebody take a look into this? Or was this discussed somewhere
else already? Or even fixed?

Anyway, to get this tracked:

#regzbot introduced: 5f501d555653f8968011a1e65ebb121c8b43c144
#regzbot from: matoro <matoro_bugzilla_kernel@xxxxxxxxx>
#regzbot title: gcc segv at startup on ia64
#regzbot link: https://bugzilla.kernel.org/show_bug.cgi?id=215601

Ciao, Thorsten (wearing his 'the Linux kernel's regression tracker' hat)

P.S.: As the Linux kernel's regression tracker I'm getting a lot of
reports on my table. I can only look briefly into most of them and lack
knowledge about most of the areas they concern. I thus unfortunately
will sometimes get things wrong or miss something important. I hope
that's not the case here; if you think it is, don't hesitate to tell me
in a public reply, it's in everyone's interest to set the public record
straight.

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