From: Andrea Cervesato via ltp <ltp@lists.linux.it>
To: linuxtestproject.agent@gmail.com
Cc: ltp@lists.linux.it
Subject: Re: [LTP] lapi/mmap: add MAP_32BIT fallback
Date: Mon, 31 Aug 2026 08:02:59 +0000 [thread overview]
Message-ID: <6a953534.332d3c56.285eb4.38cf@mx.google.com> (raw)
In-Reply-To: <20260828211038.8829-1-linuxtestproject.agent@gmail.com>
> On Aug 28, 2026, Andrea Cervesato wrote:
> > lapi/mmap: add MAP_32BIT fallback
>
> --- [PATCH 3/3] ---
>
> > * - Verify that memory in each chunk is readable and writable
> > [...]
> > ((char *)addr)[0] = 'a';
> > ((char *)addr)[CHUNK_SZ - 1] = 'z';
>
> The algorithm says that each chunk is verified to be both readable and
> writable, but these statements only write to the mapping. Could the test
> read and compare the stored bytes, or should the readability claim be
> removed?
this simply requires:
* - Touch first and last byte of each chunk to ensure pages are writable
will add before merge.
--
Andrea Cervesato
SUSE QE Automation Engineer Linux
andrea.cervesato@suse.com
--
Mailing list info: https://lists.linux.it/listinfo/ltp
next prev parent reply other threads:[~2026-08-31 8:05 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-08-28 15:36 [LTP] [PATCH 0/3] mmap testing suite to cover MAP_32BIT Andrea Cervesato
2026-08-28 15:36 ` [LTP] [PATCH 1/3] lapi/mmap: add MAP_32BIT fallback Andrea Cervesato
2026-08-28 21:10 ` [LTP] " linuxtestproject.agent
2026-08-31 8:02 ` Andrea Cervesato via ltp [this message]
2026-09-11 13:20 ` [LTP] [PATCH 1/3] " Petr Vorel
2026-09-11 13:26 ` Petr Vorel
2026-08-28 15:36 ` [LTP] [PATCH 2/3] mmap23: add test for MAP_32BIT oversized mapping Andrea Cervesato
2026-09-11 14:08 ` Petr Vorel
2026-08-28 15:36 ` [LTP] [PATCH 3/3] mmap24: add test for MAP_32BIT address limit Andrea Cervesato
2026-09-10 14:38 ` Cyril Hrubis
2026-09-11 13:59 ` Petr Vorel
2026-09-11 15:16 ` Andrea Cervesato via ltp
2026-09-11 16:03 ` Petr Vorel
-- strict thread matches above, loose matches on Subject: below --
2026-09-11 15:29 [LTP] [PATCH v3 1/3] lapi/mmap: add MAP_32BIT fallback Andrea Cervesato
2026-09-11 17:42 ` [LTP] " linuxtestproject.agent
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