SOLVED Live pclos 2010 - kde crashes when using pcc to configure wifi

[gilado]

Summary: PCLOS 2010 KDE Live CD requires 1GB RAM


Boot Live CD, works!

It logs me on as guest. I click the PCC icon select network, setup a new connection, wireless, etc.

All seems to work, I get to congrat message, then KDE desktop disappears, I'm left with the PCC window and another window showing me the netapplet signal strength (should have been in the task bar)

To give better context, this machine is running pclos 2009 with no issues.

[Texstar]

Have you checked to make sure you downloaded a good copy? md5sum the iso? Did you burn the CD as the lowest speed. ie 8-12x?

[gilado]

The file I used is  pclinuxos-kde-2010.iso 94f3bea75aa9bec77f0721d8c406c588
I ripped the CD I used and the image off of the CD has the same checksum

K3b says:

Volume Id: livecd 2010041905:27
Publisher Id: http://pclinuxos.com/
Preparer Id: mylivecd 0.9.0

[gilado]

I downloaded a fresh copy from http://pclinuxos.com/?page_id=180  (the get pclos page)
This one says:
Volume Id: livecd 2010050419:32
Preparer Id: mylicecd 0.9.1
Md5 sUm: d2f8c4068a0d07c3fc4a1dcc252310da

The check sum matches the one published by the above page.

I repeated the experiment: boot off of the CD login connect to wifi.

This time, however, I first opened a Konsole window, in it switch to root, start pcc, and in pcc, opened network center,  chose the wifi network interface, clicked Refresh, which displayed my local wifi AP, selected it, clicked Connect.

While it connected fine, KDE crashed, however, I was left with the Konsole window so I could examine the logs

Running dmesg you can see that it ran out of memory.  Below is an excerpt. If anyone is interested in the entire log I could post that too.

Linux version 2.6.32.12-pclos1.bfs (root@localhost.localdomain) (gcc version 4.4.1 (GCC) ) #1 SMP PREEMPT Sat May 1 08:22:13 CDT 2010
....
0MB HIGHMEM available.
502MB LOWMEM available.
mapped low ram: 0 - 1f6f0000
low ram: 0 - 1f6f0000
node 0 low ram: 00000000 - 1f6f0000
node 0 bootmap 00012000 - 00015ee0
....
net_applet invoked oom-killer: gfp_mask=0x80d0, order=0, oom_adj=0
Pid: 3615, comm: net_applet Not tainted 2.6.32.12-pclos1.bfs #1
Call Trace:
 [<c039d8f8>] ? _spin_unlock+0x1a/0x25
 [<c0193a6b>] T.484+0x62/0x1e6
 [<c0193ce5>] __out_of_memory+0xf6/0x108
 [<c0193d5a>] out_of_memory+0x63/0x8b
 [<c0196501>] __alloc_pages_nodemask+0x37b/0x483
 [<c019661d>] __get_free_pages+0x14/0x26
 [<c01966d8>] get_zeroed_page+0x12/0x14
 [<c020ac51>] sysfs_follow_link+0x22/0x126
 [<c01d12d5>] ? touch_atime+0x78/0xeb
 [<c01c81f5>] do_follow_link+0xb7/0x250
 [<c01c7f08>] ? do_lookup+0x4b/0x118
 [<c01c866b>] __link_path_walk+0x2dd/0x5e0
 [<c03307fc>] ? rtnl_unlock+0xd/0xf
 [<c01c8ac3>] path_walk+0x3e/0x77
 [<c01c8dd4>] do_path_lookup+0x26/0x74
 [<c01cac57>] user_path_at+0x3e/0x64
 [<c012170f>] ? ptep_set_access_flags+0x3c/0x44
 [<c039d8f8>] ? _spin_unlock+0x1a/0x25
 [<c01a6a7c>] ? do_wp_page+0x4c9/0x54a
 [<c0319da5>] ? sock_destroy_inode+0x15/0x17
 [<c01c317c>] vfs_fstatat+0x32/0x59
 [<c01c3292>] vfs_stat+0x18/0x1a
 [<c01c32ad>] sys_stat64+0x19/0x2d
 [<c039f7b5>] ? do_page_fault+0x28a/0x2c8
 [<c01034d3>] sysenter_do_call+0x12/0x28
....
77570 total pagecache pages
0 pages in swap cache
Swap cache stats: add 0, delete 0, find 0/0
Free swap  = 0kB
Total swap = 0kB
128736 pages RAM
0 pages HighMem
2563 pages reserved
83107 pages shared
96857 pages non-shared
Out of memory: kill process 3593 (plasma-desktop) score 72570 or a child
Killed process 3593 (plasma-desktop)
NET: Registered protocol family 17
martian source 255.255.255.255 from 10.0.0.1, on dev eth0
ll header: ff:ff:ff:ff:ff:ff:00:13:10:39:bc:b4:08:00
martian source 255.255.255.255 from 10.0.0.1, on dev eth0
ll header: ff:ff:ff:ff:ff:ff:00:13:10:39:bc:b4:08:00
eth0: no IPv6 routers present

[gilado]

Just for kicks I tried the CD on a nearly identical machine that has 1GB of RAM and it worked fine.

Looks like live CD with KDE4 requires 1GB RAM.