From: Brian Inglis <Brian.Inglis@Shaw.ca>
To: cygwin@cygwin.com
Subject: Re: Cygwin 3.4.3 and 3.5.0... hangs in make, top, procps, ls /proc/PID/...
Date: Thu, 19 Jan 2023 10:12:29 -0700 [thread overview]
Message-ID: <a8b195c6-df2b-5cf0-c3f4-f6a9e5d35c5f@Shaw.ca> (raw)
In-Reply-To: <f49aab6a-2cda-ba21-27d1-c4021a18f292@Shaw.ca>
On 2023-01-19 09:31, Brian Inglis via Cygwin wrote:
> On 2023-01-18 02:42, Corinna Vinschen via Cygwin wrote:
>> On Jan 18 18:16, Takashi Yano via Cygwin wrote:
>>>> On Jan 16 22:42, Corinna Vinschen via Cygwin wrote:
>>>> I pushed some patches to fix this issue. Excessive debugging indicated
>>>> that the reason cygcheck fails in this way is:
>>>> - It's a non-Cygwin process which
>>>> - is built with high-entropy ASLR and
>>>> - tries to load the Cygwin DLL dynamically and
>>>> - therefore suffers from the fact that recent Cygwin code doesn't
>>>> expect that certain memory regions are used by Windows itself.
>>>> Which they are, due to the high-entropy stuff.
>>>> The patches are supposed to make the code less rigid in terms of the
>>>> addresses of certain memory regions, as well as dropping the
>>>> high-entropy VA flag from builds of strace and cygcheck, both of which
>>>> are loading the Cygwin DLL dynamically as part of their job.
>>>> The test release 3.5.0-0.116.g8d318bf142f7 contains the patches, for
>>>> everybody to try.
>>> Thank you very much for working on this problem. It seems that
>>> it was unexpectedly large-scale modification.
>>> I confirmed that the problem has been fixed with these patches.
>>> The test case has been running for 11 hours but the problem does
>>> not happen so far.
>> Great.
>> I tested this yesterday with 7 runs on two machines in parallel while
>> building Cygwin continuously in another Window, and cygcheck still with
>> high-entropy-VA enabled. And one of the machines continued to run the
>> cygcheck loops over night and were still in good shape this morning :)
>> I guess we should release 3.4.4 pretty soon now.
> I installed and tested 3.5.0-0.122.g3c2ac163da88.x86_64 instead, as that was the
> autoselected test version.
> When cygcheck -hrsv was run as usual in local postinstall script
> zp_z2_l_cygcheck-hrsv.dash gave error msg box can't find zlib1.dll - but it's
> there:
> $ ls -glo /usr/x86_64-w64-mingw32/sys-root/mingw/bin/zlib1.dll
> -rwxr-xr-x 1 117267 Oct 15 12:14
> /usr/x86_64-w64-mingw32/sys-root/mingw/bin/zlib1.dll
> Under X/mintty/bash cygcheck will not even start - says so in error msg box with
> code 0xc000007b!
Downgraded to 3.5.0-0.116.g8d318bf142f7.x86_64 and getting exactly the same
postinstall and X/mintty/bash msg box errors:
can't find zlib1.dll
The application was unable to start correctly (0xc000007b)
Is cygcheck missing DLL search path
$CYGWIN_ROOT/usr/x86_64-w64-mingw32/sys-root/mingw/bin/?
--
Take care. Thanks, Brian Inglis Calgary, Alberta, Canada
La perfection est atteinte Perfection is achieved
non pas lorsqu'il n'y a plus rien à ajouter not when there is no more to add
mais lorsqu'il n'y a plus rien à retirer but when there is no more to cut
-- Antoine de Saint-Exupéry
next prev parent reply other threads:[~2023-01-19 17:12 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-12-30 4:59 Brian Inglis
2023-01-02 2:32 ` Takashi Yano
2023-01-02 5:38 ` Takashi Yano
2023-01-02 8:21 ` Takashi Yano
2023-01-09 13:20 ` Corinna Vinschen
2023-01-16 9:02 ` Takashi Yano
2023-01-16 10:23 ` Corinna Vinschen
2023-01-16 14:45 ` Takashi Yano
2023-01-16 15:18 ` Corinna Vinschen
2023-01-16 19:23 ` Brian Inglis
2023-01-16 21:42 ` Corinna Vinschen
2023-01-17 20:46 ` Corinna Vinschen
2023-01-18 9:16 ` Takashi Yano
2023-01-18 9:42 ` Corinna Vinschen
2023-01-19 16:31 ` Brian Inglis
2023-01-19 17:12 ` Brian Inglis [this message]
2023-01-19 18:38 ` Corinna Vinschen
2023-01-19 18:42 ` Jose Isaias Cabrera
2023-01-19 19:31 ` Brian Inglis
2023-03-21 19:17 ` Brian Inglis
2023-03-22 19:05 ` Brian Inglis
2023-01-02 23:03 ` Takashi Yano
2023-01-09 16:02 ` Corinna Vinschen
2023-01-09 17:13 ` Corinna Vinschen
2023-01-10 10:01 ` Takashi Yano
2023-01-10 10:57 ` Corinna Vinschen
2023-01-09 13:36 ` Corinna Vinschen
2023-01-10 0:00 ` Brian Inglis
2023-01-16 15:40 ` Jon Turney
2023-01-16 18:54 ` Brian Inglis
2022-12-31 20:01 Brian Inglis
2023-01-01 18:51 ` Jeremy Drake
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