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From: "Zack Weinberg" <zack@owlfolio.org>
To: "GNU libc development" <libc-alpha@sourceware.org>
Subject: Re: RFC PATCH: Don't use /proc/self/maps to calculate size of initial thread stack
Date: Fri, 23 Sep 2022 10:59:29 -0400	[thread overview]
Message-ID: <3fb8e41b-8717-4663-9a09-8259211d5d69@www.fastmail.com> (raw)
In-Reply-To: <54c6018f-3b1d-84e9-04e5-55c0eca66a4c@linaro.org>

On Wed, Sep 21, 2022, at 4:58 PM, Adhemerval Zanella Netto via Libc-alpha wrote:
> I wonder if we could use inplace mremap (which should be a nop) to inform
> a more approximate value for the stack (the code only handles grown down
> architecture):

mremap is unusual enough that I think we'd have the same problem with seccomp filters that Florian pointed out regarding process_vm_readv.

zw

  reply	other threads:[~2022-09-23 14:59 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-09-09 21:03 Zack Weinberg
2022-09-13  9:52 ` Florian Weimer
2022-09-13 22:03   ` Michael Hudson-Doyle
2022-09-15 16:09   ` Zack Weinberg
2022-09-20 12:16     ` Florian Weimer
2022-09-21 12:41       ` Zack Weinberg
2022-09-21 13:01         ` Florian Weimer
2022-09-21 20:58     ` Adhemerval Zanella Netto
2022-09-23 14:59       ` Zack Weinberg [this message]
2022-09-23 15:24         ` Adhemerval Zanella Netto
2022-09-23 18:57         ` Florian Weimer

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