Large attachments in SM stall Firefox browser

[byrnejb]

CentOS-6.8
Squirrelmail-1.4.22 (SM)
Apache-2.2.15
PHP-5.3.3
Firefox-45.6.0 (FF)

I have a message with a large (8M) attachment.  When I attempt to open
this message in SM using Firefox then FF invariantly becomes
completely non-responsive and the CPU utilisation rate for the FF
process goes to 100% on a quad core x86_64 running CentOS.

Is there any way to fix this?



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[Robert Kudyba]

This happens to me on Chrome on Mac w/ Fedora 25 and the right frame stays white and never populates.

> On Jan 10, 2017, at 12:17 PM, James B. Byrne <[hidden email]> wrote:
>
> CentOS-6.8
> Squirrelmail-1.4.22 (SM)
> Apache-2.2.15
> PHP-5.3.3
> Firefox-45.6.0 (FF)
>
> I have a message with a large (8M) attachment.  When I attempt to open
> this message in SM using Firefox then FF invariantly becomes
> completely non-responsive and the CPU utilisation rate for the FF
> process goes to 100% on a quad core x86_64 running CentOS.
>
> Is there any way to fix this?
>
>
>
> --
> ***          e-Mail is NOT a SECURE channel          ***
>        Do NOT transmit sensitive data via e-Mail
> Do NOT open attachments nor follow links sent by e-Mail
>
> James B. Byrne                mailto:[hidden email]
> Harte & Lyne Limited          https://urldefense.proofpoint.com/v2/url?u=http-3A__www.harte-2Dlyne.ca&d=DgICAg&c=aqMfXOEvEJQh2iQMCb7Wy8l0sPnURkcqADc2guUW8IM&r=X0jL9y0sL4r4iU_qVtR3lLNo4tOL1ry_m7-psV3GejY&m=Kp7m2i1BChry8g9mDPRDrf9L0IlStwX8Tilo-aZkTRU&s=KGOBrLO7PRt9LW8WJEO1SsFkiYq9AdV6pCWOsY3Mxr0&e= 
> 9 Brockley Drive              vox: [phone]
> Hamilton, Ontario             fax: [phone]
> Canada  L8E 3C3
>
>
> ------------------------------------------------------------------------------
> Developer Access Program for Intel Xeon Phi Processors
> Access to Intel Xeon Phi processor-based developer platforms.
> With one year of Intel Parallel Studio XE.
> Training and support from Colfax.
> Order your platform today. https://urldefense.proofpoint.com/v2/url?u=http-3A__sdm.link_xeonphi&d=DgICAg&c=aqMfXOEvEJQh2iQMCb7Wy8l0sPnURkcqADc2guUW8IM&r=X0jL9y0sL4r4iU_qVtR3lLNo4tOL1ry_m7-psV3GejY&m=Kp7m2i1BChry8g9mDPRDrf9L0IlStwX8Tilo-aZkTRU&s=jeGQ4D4twXrafxgSHubDxK8vlGieARbvV7FygK36Fyc&e= 
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[byrnejb]

On Tue, January 10, 2017 12:17, James B. Byrne wrote:

> CentOS-6.8
> Squirrelmail-1.4.22 (SM)
> Apache-2.2.15
> PHP-5.3.3
> Firefox-45.6.0 (FF)
>
> I have a message with a large (8M) attachment.  When I attempt to open
> this message in SM using Firefox then FF invariantly becomes
> completely non-responsive and the CPU utilisation rate for the FF
> process goes to 100% on a quad core x86_64 running CentOS.
>
> Is there any way to fix this?
>
>
>

Correction.  There is no attachment.  The message itself is 8MB.  It
is a logfile summary automatically generated by one of our hosts.  I
surmise that this issue is transforming theis large text file into
html for display in Squirrelmail.  However, that may be, the problem
remains the same.  I cannot view very large messages in Squirrelmail
and I need to.

--
***          e-Mail is NOT a SECURE channel          ***
        Do NOT transmit sensitive data via e-Mail
 Do NOT open attachments nor follow links sent by e-Mail

James B. Byrne                mailto:[hidden email]
Harte & Lyne Limited          http://www.harte-lyne.ca
9 Brockley Drive              vox: [phone]
Hamilton, Ontario             fax: [phone]
Canada  L8E 3C3


------------------------------------------------------------------------------
Developer Access Program for Intel Xeon Phi Processors
Access to Intel Xeon Phi processor-based developer platforms.
With one year of Intel Parallel Studio XE.
Training and support from Colfax.
Order your platform today. http://sdm.link/xeonphi
-----
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[byrnejb]

On Tue, January 10, 2017 15:53, James B. Byrne wrote:

>
> On Tue, January 10, 2017 12:17, James B. Byrne wrote:
>> CentOS-6.8
>> Squirrelmail-1.4.22 (SM)
>> Apache-2.2.15
>> PHP-5.3.3
>> Firefox-45.6.0 (FF)
>>
>> I have a message with a large (8M) attachment.  When I attempt to
>> open
>> this message in SM using Firefox then FF invariantly becomes
>> completely non-responsive and the CPU utilisation rate for the FF
>> process goes to 100% on a quad core x86_64 running CentOS.
>>
>> Is there any way to fix this?
>>
>>
>>
>
> Correction.  There is no attachment.  The message itself is 8MB.  It
> is a logfile summary automatically generated by one of our hosts.  I
> surmise that this issue is transforming theis large text file into
> html for display in Squirrelmail.  However, that may be, the problem
> remains the same.  I cannot view very large messages in Squirrelmail
> and I need to.
>

I discovered a work-around.  I simply saved the link from the folder
contents and opened the resulting file, read_body.php, in a text
editor.  I can at least read the contents which is really all that I
needed.

--
***          e-Mail is NOT a SECURE channel          ***
        Do NOT transmit sensitive data via e-Mail
 Do NOT open attachments nor follow links sent by e-Mail

James B. Byrne                mailto:[hidden email]
Harte & Lyne Limited          http://www.harte-lyne.ca
9 Brockley Drive              vox: [phone]
Hamilton, Ontario             fax: [phone]
Canada  L8E 3C3


------------------------------------------------------------------------------
Developer Access Program for Intel Xeon Phi Processors
Access to Intel Xeon Phi processor-based developer platforms.
With one year of Intel Parallel Studio XE.
Training and support from Colfax.
Order your platform today. http://sdm.link/xeonphi
-----
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[Paul Lesniewski]

On 2017年01月10日 10:46, Robert Kudyba wrote:

> This happens to me on Chrome on Mac w/ Fedora 25 and the right frame stays white and never populates.
>
>> On Jan 10, 2017, at 12:17 PM, James B. Byrne <[hidden email]> wrote:
>>
>> CentOS-6.8
>> Squirrelmail-1.4.22 (SM)
>> Apache-2.2.15
>> PHP-5.3.3
>> Firefox-45.6.0 (FF)
>>
>> I have a message with a large (8M) attachment.  When I attempt to open
>> this message in SM using Firefox then FF invariantly becomes
>> completely non-responsive and the CPU utilisation rate for the FF
>> process goes to 100% on a quad core x86_64 running CentOS.
>>
>> Is there any way to fix this?

Haven't seen that problem myself, but it's probably the web server, as
SM isn't doing anything unusual here (unless your IMAP server is slow to
retrieve a large attachment and the web request times out - still not a
SM-specific problem).

--
Paul Lesniewski
SquirrelMail Team
Please support Open Source Software by donating to SquirrelMail!
http://squirrelmail.org/donate_paul_lesniewski.php

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