Status: Unconfirmed
Owner: ----
Labels: OS-Linux Area-Misc Size-Medium Type-Bug

New issue 18198 by [email protected]: parent chrome process eating 100% CPU  
indefinitely (AFAICT)
http://code.google.com/p/chromium/issues/detail?id=18198

Chrome Version       : 3.0.196.0
OS + version : ubuntu hardy
CPU architecture (32-bit / 64-bit): 64-bit
window manager : gnome
URLs (if applicable) :
Behavior in Firefox 3.x (if applicable):
Behavior in Chrome for Windows (optional):

What steps will reproduce the problem?

Unknown, sorry.


What is the expected result?

N/A

What happens instead?

Parent chrome process seems to be eating 100% CPU. This continued until I
killed it, after at least 30 minutes looking into it (strace, gdb, etc).

This may be a rare issue, so I'm reporting it, even though I have not
verified this against nightly builds, etc.


Please provide any additional information below. Attach a screenshot
and backtrace if possible.


top says:

22307 epizzi    20   0  258m 112m  19m S   96  3.7   3606:56 chrome

ps auxfww shows this to be the parent process:

epizzi   22307 24.8  3.7 264772 115164 ?       Sl   Jul21 3607:09
/opt/google/chrome/chrome
epizzi   22330  0.0  0.0 115684  2652 ?        S    Jul21   0:10  \_
/opt/google/chrome/chrome
epizzi   22336  0.0  0.1  60348  4796 ?        S    Jul21   0:00  \_
/opt/google/chrome/chrome --type=zygote
root     22337  0.0  0.0      0     0 ?        Z    Jul21   0:00  |   \_
[chrome-sandbox] <defunct>
epizzi   18312  0.0  0.6 108928 20232 ?        Sl   Jul21   0:03  |   \_
/opt/google/chrome/chrome --type=zygote
epizzi   29866  0.0  0.6 109916 19624 ?        Sl   Jul21   0:06  |   \_
/opt/google/chrome/chrome --type=zygote
epizzi    7515  0.0  0.6 105136 19872 ?        Sl   Jul22   0:05  |   \_
/opt/google/chrome/chrome --type=zygote
epizzi   10928  0.0  0.4  99096 14264 ?        Sl   Jul22   0:03  |   \_
/opt/google/chrome/chrome --type=zygote
epizzi   28661  1.0  6.6 262428 205984 ?       Sl   Jul24  98:50  |   \_
/opt/google/chrome/chrome --type=zygote
epizzi   19532  0.6  3.3 157476 102792 ?       Sl   Jul24  61:24  |   \_
/opt/google/chrome/chrome --type=zygote
epizzi    1136  0.4  2.0 121896 64328 ?        Sl   Jul29  13:20  |   \_
/opt/google/chrome/chrome --type=zygote
epizzi    6379  0.0  1.1 112996 35392 ?        Sl   Jul30   0:05  |   \_
/opt/google/chrome/chrome --type=zygote
epizzi   30593  1.3  1.1 108088 35760 ?        Sl   12:51   0:03  |   \_
/opt/google/chrome/chrome --type=zygote
epizzi   22427  0.0  0.0      0     0 ?        Z    Jul21   0:00  \_
[chrome] <defunct>
epizzi   24246  0.0  0.0      0     0 ?        Z    Jul21   0:00  \_
[chrome] <defunct>
epizzi   25666  0.0  0.0      0     0 ?        Z    Jul21   0:00  \_
[chrome] <defunct>
epizzi   27014  0.0  0.0      0     0 ?        Z    Jul21   0:00  \_
[chrome] <defunct>
epizzi   31110  0.0  0.0      0     0 ?        Z    Jul22   0:00  \_
[chrome] <defunct>
epizzi   31602  0.0  0.0      0     0 ?        Z    Jul22   0:00  \_
[chrome] <defunct>
epizzi   12745  0.0  0.0      0     0 ?        Z    Jul22   0:00  \_
[chrome] <defunct>
epizzi   24926  0.0  0.0      0     0 ?        Z    Jul22   0:00  \_
[chrome] <defunct>
epizzi   27229  0.0  0.0      0     0 ?        Z    Jul22   0:00  \_
[chrome] <defunct>
epizzi   30759  0.0  0.0  52356  1856 ?        Sl   Jul23   0:00  \_
/opt/google/chrome/chrome --type=utility --
channel=22307.efdccc58.1848277418

GDB backtrace:

$ gdb -p 22307
...
Attaching to process 22307
Reading symbols from /opt/google/chrome/chrome...
WARNING: no debugging symbols found in /opt/google/chrome/chrome.
...
Cannot access memory at address 0x1b93ea
...
(gdb) bt
#0  0xffffe410 in ?? ()
#1  0xffec8e48 in ?? ()
#2  0x00000143 in ?? ()
#3  0x00000007 in ?? ()
#4  0xf7344d87 in ?? ()
#5  0x00000000 in ?? ()


Strace output attached as well.

Attachments:
        trace  44.9 KB

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