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* A workaround against Emacs crash when displaying images
@ 2019-03-07  0:20 Katsumi Yamaoka
  2019-03-07 15:55 ` Ken Brown
  0 siblings, 1 reply; 6+ messages in thread
From: Katsumi Yamaoka @ 2019-03-07  0:20 UTC (permalink / raw)
  To: cygwin

Hi,

I found a workaround for Emacs from crashing that always happens
when displaying images in an html article using Gnus.  That is:

export MAGICK_THREAD_LIMIT=1

According to the Google search someone said the crash arises due
to a bug in ImageMagick incorporating OpenMP.  I don't know what
it means at all, though. ;-)

Regards,

uname -a
CYGWIN_NT-10.0 localhost 3.0.2(0.338/5/3) 2019-03-05 18:57 x86_64 Cygwin

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^ permalink raw reply	[flat|nested] 6+ messages in thread
* Re: A workaround against Emacs crash when displaying images
  2019-03-07  0:20 A workaround against Emacs crash when displaying images Katsumi Yamaoka
@ 2019-03-07 15:55 ` Ken Brown
  2019-03-07 23:36   ` Katsumi Yamaoka
  0 siblings, 1 reply; 6+ messages in thread
From: Ken Brown @ 2019-03-07 15:55 UTC (permalink / raw)
  To: cygwin

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On 3/6/2019 7:20 PM, Katsumi Yamaoka wrote:
> Hi,
> 
> I found a workaround for Emacs from crashing that always happens
> when displaying images in an html article using Gnus.  That is:
> 
> export MAGICK_THREAD_LIMIT=1
> 
> According to the Google search someone said the crash arises due
> to a bug in ImageMagick incorporating OpenMP.  I don't know what
> it means at all, though. ;-)
> 
> Regards,
> 
> uname -a
> CYGWIN_NT-10.0 localhost 3.0.2(0.338/5/3) 2019-03-05 18:57 x86_64 Cygwin

Is this a new issue with cygwin-3.0.x?  If so, it might be related to the memory 
leak that was recently discovered (and fixed in the latest snapshot):

   http://www.cygwin.org/ml/cygwin/2019-03/msg00122.html

Ken
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^ permalink raw reply	[flat|nested] 6+ messages in thread
* Re: A workaround against Emacs crash when displaying images
  2019-03-07 15:55 ` Ken Brown
@ 2019-03-07 23:36   ` Katsumi Yamaoka
  2019-03-08  4:36     ` Katsumi Yamaoka
  0 siblings, 1 reply; 6+ messages in thread
From: Katsumi Yamaoka @ 2019-03-07 23:36 UTC (permalink / raw)
  To: cygwin

On Thu, 07 Mar 2019 15:55:29 +0000, Ken Brown wrote:
> On 3/6/2019 7:20 PM, Katsumi Yamaoka wrote:
>> export MAGICK_THREAD_LIMIT=1

> Is this a new issue with cygwin-3.0.x?  If so, it might be related
> to the memory leak that was recently discovered (and fixed in the
> latest snapshot):

>    http://www.cygwin.org/ml/cygwin/2019-03/msg00122.html

I tried the 2019-03-06 snapshot and, oh!, I verified Emacs got
not to crash for displaying images without such a spell.
It seems Emacs revived as for me as it was before Cygwin 3.

Thanks!

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^ permalink raw reply	[flat|nested] 6+ messages in thread
* Re: A workaround against Emacs crash when displaying images
  2019-03-07 23:36   ` Katsumi Yamaoka
@ 2019-03-08  4:36     ` Katsumi Yamaoka
  2019-03-08 12:05       ` Corinna Vinschen
  0 siblings, 1 reply; 6+ messages in thread
From: Katsumi Yamaoka @ 2019-03-08  4:36 UTC (permalink / raw)
  To: cygwin

On Fri, 08 Mar 2019 08:36:24 +0900, Katsumi Yamaoka wrote:
> I tried the 2019-03-06 snapshot and, oh!, I verified Emacs got
> not to crash for displaying images without such a spell.
> It seems Emacs revived as for me as it was before Cygwin 3.

I'm sorry that was a hasty conclusion.  Emacs suddenly freezes when
I am typing somthing even if it is simply a text that will never
change frame or window configuration nor displaying image; happens
with Cygwin's Emacs and the ones I built from git; neither C-g nor
`kill -9' doesn't help; killing it using the Windows task manager
is the only measure to stop it.  As it makes me hard to work, I
reverted the use of the snapshot to 3.0.2.

Regards,

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^ permalink raw reply	[flat|nested] 6+ messages in thread
* Re: A workaround against Emacs crash when displaying images
  2019-03-08  4:36     ` Katsumi Yamaoka
@ 2019-03-08 12:05       ` Corinna Vinschen
  2019-03-10 23:12         ` Katsumi Yamaoka
  0 siblings, 1 reply; 6+ messages in thread
From: Corinna Vinschen @ 2019-03-08 12:05 UTC (permalink / raw)
  To: Katsumi Yamaoka; +Cc: cygwin

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On Mar  8 13:36, Katsumi Yamaoka wrote:
> On Fri, 08 Mar 2019 08:36:24 +0900, Katsumi Yamaoka wrote:
> > I tried the 2019-03-06 snapshot and, oh!, I verified Emacs got
> > not to crash for displaying images without such a spell.
> > It seems Emacs revived as for me as it was before Cygwin 3.
> 
> I'm sorry that was a hasty conclusion.  Emacs suddenly freezes when
> I am typing somthing even if it is simply a text that will never
> change frame or window configuration nor displaying image; happens
> with Cygwin's Emacs and the ones I built from git; neither C-g nor
> `kill -9' doesn't help; killing it using the Windows task manager
> is the only measure to stop it.  As it makes me hard to work, I
> reverted the use of the snapshot to 3.0.2.

I could reproduce the hang and found a potential deadlock situation.
I pushed a fix and uploaded new developer snapshots to
https://cygwin.com/snapshots/

Please test.


Corinna

-- 
Corinna Vinschen
Cygwin Maintainer

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^ permalink raw reply	[flat|nested] 6+ messages in thread
* Re: A workaround against Emacs crash when displaying images
  2019-03-08 12:05       ` Corinna Vinschen
@ 2019-03-10 23:12         ` Katsumi Yamaoka
  0 siblings, 0 replies; 6+ messages in thread
From: Katsumi Yamaoka @ 2019-03-10 23:12 UTC (permalink / raw)
  To: cygwin

On Fri, 08 Mar 2019 13:04:40 +0100, Corinna Vinschen wrote:
> I could reproduce the hang and found a potential deadlock situation.
> I pushed a fix and uploaded new developer snapshots to
> https://cygwin.com/snapshots/

> Please test.

All seems to work fine on 3.0.3.  Thank you!

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^ permalink raw reply	[flat|nested] 6+ messages in thread
end of thread, other threads:[~2019-03-10 23:12 UTC | newest]

Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2019-03-07  0:20 A workaround against Emacs crash when displaying images Katsumi Yamaoka
2019-03-07 15:55 ` Ken Brown
2019-03-07 23:36   ` Katsumi Yamaoka
2019-03-08  4:36     ` Katsumi Yamaoka
2019-03-08 12:05       ` Corinna Vinschen
2019-03-10 23:12         ` Katsumi Yamaoka

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