66547 - Failed POP3 login causes 100% CPU usage

Status: VERIFIED INVALID

(MailNews Core :: Networking: POP, defect)

Description

[Stephen Moehle]

If the login to my POP3 mail server fails, Mozilla puts up an alert that says
"An error occurred while sending your password to the mail server."  After I
cancel the alert, Mozilla takes up 100% of the CPU and continues to do so until
I shut it down.  Mozilla continues to function while it hogging the CPU but does
so very slowly.

To reproduce:
1) Log in to a POP3 server but do something to cause the login to fail.  In my
case, it seems the POP3 server itself is having problems: "-ERR mail storage
services unavailable, wait a few minutes and try again."
2) See the alert, "An error occurred while sending..."
3) Cancel the alert.
4) See Mozilla take up 100% of the CPU.

Here is the POP3 log:
0[811890]: Entering NET_ProcessPop3 34
0[811890]: POP3: Entering state: 1
0[811890]: POP3: Entering state: 2
0[811890]: POP3: Entering state: 4
0[811890]: RECV: +OK InterMail POP3 server ready.
0[811890]: POP3: Entering state: 29
0[811890]: SEND: AUTH

0[811890]: Entering NET_ProcessPop3 50
0[811890]: POP3: Entering state: 3
0[811890]: RECV: -ERR Invalid command; valid commands: USER, QUIT
0[811890]: POP3: Entering state: 30
0[811890]: POP3: Entering state: 5
0[811890]: SEND: USER smoehle

0[811890]: Entering NET_ProcessPop3 30
0[811890]: POP3: Entering state: 3
0[811890]: RECV: +OK please send PASS command
0[811890]: POP3: Entering state: 6
0[811890]: Logging suppressed for this command (it probably contained
authentication information)
0[811890]: Entering NET_ProcessPop3 75
0[811890]: POP3: Entering state: 3
0[811890]: RECV: -ERR mail storage services unavailable, wait a few minutes and
try again.
0[811890]: POP3: Entering state: 7
0[811890]: POP3: Entering state: 5
0[811890]: SEND: USER smoehle

Tested with Mozilla 2001012504 on NT4.

Comment 1

[Keyser Sose]

This WORKSFORME
Platform: PC
OS: Windows 98
Mozilla Build: 2001020104

Reporter try downloading the latest nightly at
http://www.mozillazine.org/build_comments/ and create a new profile. See if this
fixes the problem.

Comment 2

[Stephen Moehle]

I cannot duplicate the bug, but I believe that is because my POP3 server is no
longer responding with "-ERR mail storage services unavailable

, wait a few minutes and try again."  However, this being @Home, it should not
be too long before I get that error again, and I can see how Mozilla handles it.











  Resolving INVALID for now.

Comment 3

[Sheela Ravindran]

verifying this based on reporters comments.  Reopen if this occurs again.