Re: 2.4.20-aa and LARGE Squid process -> SIGSEGV

From: Ralf Hildebrandt (Ralf.Hildebrandt@charite.de)
Date: Fri Dec 20 2002 - 17:57:33 EST

* J.A. Magallon <jamagallon@able.es>:

> Normal. You are running OOM. Look at what you do:

But that manifests itself in a segfault? The kernel never logs an OOM
in the logs.

> Ah, with 2Gb of ram you will need to compile with 3Gb userspace,
> to let a one only process allocate a chunk of mem that does not fit
> into core memory. Or, easier, run several instances...

Right now we're running a Xeon with 2GB - from the menuconfig:

      (4GB) High Memory Support

This was based on the help in the kernel config:

"If the machine has between 1 and 4 Gigabytes physical RAM, then
answer "4GB" here."

      (3.5GB) User address space size
      [*] HIGHMEM I/O support

dmesg says:

Linux version 2.4.20aa1 (root@spidergirl) (gcc version 2.95.4 20011002
(Debian prerelease)) #1 Thu Dec 19 14:35:35 CET 2002
BIOS-provided physical RAM map:
 BIOS-e820: 0000000000000000 - 00000000000a0000 (usable)
 BIOS-e820: 0000000000100000 - 000000007fff0000 (usable)
 BIOS-e820: 000000007fff0000 - 000000007fffec00 (ACPI data)
 BIOS-e820: 000000007fffec00 - 000000007ffff000 (reserved)
 BIOS-e820: 00000000fec00000 - 00000000fec10000 (reserved)
 BIOS-e820: 00000000fee00000 - 00000000fee10000 (reserved)
 BIOS-e820: 00000000fff80000 - 0000000100000000 (reserved)
1663MB HIGHMEM available.
384MB LOWMEM available.
...
Calibrating delay loop... 5557.45 BogoMIPS
Memory: 2069264k/2097088k available (1659k kernel code, 27440k
reserved, 651k data, 136k init, 1703872k highmem)
Dentry cache hash table entries: 262144 (order: 9, 2097152 bytes)
Inode cache hash table entries: 131072 (order: 8, 1048576 bytes)
Mount-cache hash table entries: 32768 (order: 6, 262144 bytes)
Buffer-cache hash table entries: 131072 (order: 7, 524288 bytes)
Page-cache hash table entries: 524288 (order: 9, 2097152 bytes)
CPU: L1 I cache: 0K, L1 D cache: 8K
CPU: L2 cache: 512K
Intel machine check architecture supported.
Intel machine check reporting enabled on CPU#0.
CPU: After generic, caps: bfebfbff 00000000 00000000 00000000
CPU: Common caps: bfebfbff 00000000 00000000 00000000
CPU: Intel(R) Xeon(TM) CPU 2.80GHz stepping 07
... 

-- 
Ralf Hildebrandt (Im Auftrag des Referat V a)   Ralf.Hildebrandt@charite.de
Charite Campus Mitte                            Tel.  +49 (0)30-450 570-155
Referat V a - Kommunikationsnetze -             Fax.  +49 (0)30-450 570-916
"All programmers are playwrights and all computers are lousy actors."  -Anon.

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This archive was generated by hypermail 2b29 : Mon Dec 23 2002 - 22:00:28 EST