Hello,
tail /dev/zero (ran as a normal user) hangs 2.4.19-pre10aa2 but not
-pre10 and -pre10ac2.
In case of -pre10aa2:
The vmstat output just before it started killing processes, and
later hang (ie, the vmstat itself hang):
procs memory swap io system
cpu
r b w swpd free buff cache si so bi bo in cs us
sy id
0 0 0 0 92428 5420 14752 0 0 331 118 146 116 16
13 71
0 0 0 0 92276 5568 14752 0 0 0 53 109 6 0
0 100
0 0 0 0 91264 5652 14752 0 0 0 23 114 19 1
0 99
0 0 0 0 90760 5864 14808 0 0 8 58 113 16 0
1 99
2 1 1 40836 1528 1512 5016 78 5789 83 5802 241 250 19
12 69
1 0 1 101168 1912 1512 5012 95 7930 95 7935 245 267 10
13 77
2 0 2 152560 1500 1512 5012 62 8098 62 8098 243 200 10
21 70
With greater difficulty I was able to login (it killed the telnet
session many times, at various stages).
Some sample messages from dmesg:
__alloc_pages: 0-order allocation failed (gfp=0x1d2/0)
VM: killing process tail
__alloc_pages: 0-order allocation failed (gfp=0x1d2/0)
Multiply the "__alloc_pages" error message by 100 times or so.
And,
VM: killing process smbd
In the same way it killed run-crons, login, in.telnetd, tcpd, inetd and
X.
Though it killed the root cause - "tail" command, commands like
ps/top/reboot etc hang, vmstat got killed initially and hung later, su
got killed, sync works fine. I am unable to switch between virtual
terminals at the console using ctrl alt F1/F2.
In case of -pre10 and -pre10ac2:
It thrashes initially for about 10 secs (approx) and then everything is
back to normal. There is a single line of "Out of Memory: killed process
403 (tail)" (of course the process id of tail is different between
-pre10 and -pre10ac2). And the system comes back to normal state.
This is a:
Pentium - II @ 333 MHz
128 MB RAM,
150 MB swap,
gcc-2.95.2,
suse 7.1
I am not subscribed to lkml, please cc me if you can, else I will refer
the web archive at marctheaimsgroup.com
Thanks
Hari
harisri@bigpond.com
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This archive was generated by hypermail 2b29 : Sun Jun 23 2002 - 22:00:12 EST