From: safemode <safemode@speakeasy.net>
To: Arjan Filius <iafilius@xs4all.nl>, Robert Love <rml@tech9.net>
Cc: <linux-kernel@vger.kernel.org>
Subject: Re: Feedback on preemptible kernel patch
Date: Sat, 8 Sep 2001 14:22:04 -0400 [thread overview]
Message-ID: <20010908182148Z271799-760+10950@vger.kernel.org> (raw)
In-Reply-To: <Pine.LNX.4.33.0109081920540.3542-100000@sjoerd.sjoerdnet>
In-Reply-To: <Pine.LNX.4.33.0109081920540.3542-100000@sjoerd.sjoerdnet>
On Saturday 08 September 2001 13:33, Arjan Filius wrote:
> Hello Robert,
>
>
> I tried 2.4.10-pre4 with patch-rml-2.4.10-pre4-preempt-kernel-1.
> But it seems to hit highmem (see below) (i do have 1.5GB ram)
> 2.4.10-pre4 plain runs just fine.
>
> With the kernel option mem=850M the patched kernel boots an seems to run
> fine. However i didn't do any stress testing yet, but i still notice
> hickups while playing mp3 files at -10 nice level with mpg123 on a 1.1GHz
> Athlon, and removing for example a _large_ file (reiser-on-lvm).
Have you tried running it without an altered priority level (altered by you
that is)? I run freeamp without any special nice level and running it while
dbench is pushing the system into 25 load or something else is throttling the
system at 100% cpu and hogging 200MB of ram - it never skips. With or
without the patch. Some programs actually suffer from changing from default
priority. i see that with hdparm -t sometimes. This is on a 850Mhz athlon,
by the way. I find mpg123 to be slower than most other players. Try some of
them. If you're console only, freeamp is both a console and gui mp3 player.
I imagine xmms would be pretty fast too when you turn off any extras.
> My syslog output with highmem:
>
> Sep 8 18:10:16 sjoerd kernel: kernel BUG at
> /usr/src/linux-2.4.10-pre4/include/asm/highmem.h:95! Sep 8 18:10:16 sjoerd
> kernel: invalid operand: 0000
> Sep 8 18:10:16 sjoerd kernel: CPU: 0
> Sep 8 18:10:16 sjoerd kernel: EIP: 0010:[do_wp_page+636/1088]
> Sep 8 18:10:16 sjoerd kernel: EFLAGS: 00010282
> Sep 8 18:10:16 sjoerd kernel: eax: 00000043 ebx: 080bdd5c ecx:
> f5764260 edx: f4d4c000 Sep 8 18:10:16 sjoerd kernel: esi: c26cca60
> edi: ffffffff ebp: c26ca134 esp: f4d4dec8 Sep 8 18:10:16 sjoerd
> kernel: ds: 0018 es: 0018 ss: 0018
> Sep 8 18:10:16 sjoerd kernel: Process S11dhcpd (pid: 2507,
> stackpage=f4d4d000) Sep 8 18:10:16 sjoerd kernel: Stack: c0210bd2 c0210cc0
> 0000005f 080bdd5c f5805f00 ffffffff 00000001 c012437d Sep 8 18:10:16
> sjoerd kernel: f5805f00 f4d49a00 080bdd5c f4c822f4 55d54065 f4d4c000
> f4d49a00 f5805f00 Sep 8 18:10:16 sjoerd kernel: f5805f1c c0111a17
> f5805f00 f4d49a00 080bdd5c 00000001 f4d4c000 00000007 Sep 8 18:10:16
> sjoerd kernel: Call Trace: [handle_mm_fault+141/224]
> [do_page_fault+375/1136] [do_page_fault+0/1136] [__mmdrop+58/64]
> [do_exit+595/640] Sep 8 18:10:16 sjoerd kernel: [error_code+52/64]
> Sep 8 18:10:16 sjoerd kernel:
> Sep 8 18:10:16 sjoerd kernel: Code: 0f 0b 83 c4 0c 8b 15 e8 2f 2a c0 89 f0
> 2b 05 ac ba 2a c0 69 Sep 8 18:10:16 sjoerd kernel: MAC unknown INTRUDERS??
> (tf) IN=eth0 OUT= MAC= SRC=192.168.0.5 DST=192.168.0.255 LEN=241 TOS=0x02
> PREC=0x00 TTL=64 ID=0 DF PROTO=UDP SPT=138 DPT=138 LEN=221 Sep 8 18:10:16
> sjoerd kernel: MAC unknown INTRUDERS?? (tf) IN=eth0 OUT= MAC=
> SRC=192.168.0.5 DST=192.168.0.255 LEN=96 TOS=0x02 PREC=0x00 TTL=64 ID=0 DF
> PROTO=UDP SPT=137 DPT=137 LEN=76 Sep 8 18:10:16 sjoerd kernel: kernel BUG
> at /usr/src/linux-2.4.10-pre4/include/asm/highmem.h:95! Sep 8 18:10:16
> sjoerd kernel: invalid operand: 0000
> Sep 8 18:10:16 sjoerd kernel: CPU: 0
> Sep 8 18:10:16 sjoerd kernel: EIP: 0010:[do_anonymous_page+130/368]
> Sep 8 18:10:16 sjoerd kernel: EFLAGS: 00010286
> Sep 8 18:10:16 sjoerd kernel: eax: 00000043 ebx: 080c501c ecx:
> f5764260 edx: f4d4c000 Sep 8 18:10:16 sjoerd kernel: esi: c26c4fec
> edi: f5805f00 ebp: f4d497c0 esp: f4d4dea0 Sep 8 18:10:16 sjoerd
> kernel: ds: 0018 es: 0018 ss: 0018
> Sep 8 18:10:16 sjoerd kernel: Process dhcpd (pid: 2508,
> stackpage=f4d4d000) Sep 8 18:10:16 sjoerd kernel: Stack: c0210bd2 c0210cc0
> 0000005f 080c501c f4d497c0 f5805f00 00000001 c012420f Sep 8 18:10:16
> sjoerd kernel: f5805f00 f4d497c0 f4c63314 00000001 080c501c 080c501c
> f5805f00 ffffffff Sep 8 18:10:16 sjoerd kernel: 00000001 c012434e
> f5805f00 f4d497c0 080c501c 00000001 f4c63314 f4d4c000 Sep 8 18:10:16
> sjoerd kernel: Call Trace: [do_no_page+47/272] [handle_mm_fault+94/224]
> [do_page_fault+375/1136] [do_page_fault+0/1136] [do_munmap+86/640] Sep 8
> 18:10:16 sjoerd kernel: [fput+116/224] [do_brk+176/368]
> [sys_brk+187/240] [error_code+52/64] Sep 8 18:10:16 sjoerd kernel:
> Sep 8 18:10:16 sjoerd kernel: Code: 0f 0b 83 c4 0c 8b 15 e8 2f 2a c0 89 f0
> 2b 05 ac ba 2a c0 69 Sep 8 18:10:16 sjoerd kernel: kernel BUG at
> /usr/src/linux-2.4.10-pre4/include/asm/highmem.h:95! Sep 8 18:10:16 sjoerd
> kernel: invalid operand: 0000
> Sep 8 18:10:16 sjoerd kernel: CPU: 0
> Sep 8 18:10:16 sjoerd kernel: EIP: 0010:[do_anonymous_page+130/368]
> Sep 8 18:10:16 sjoerd kernel: EFLAGS: 00010282
> Sep 8 18:10:16 sjoerd kernel: eax: 00000043 ebx: 40017000 ecx:
> f5735f7c edx: f4c88000 Sep 8 18:10:16 sjoerd kernel: esi: c26c9298
> edi: f5805d80 ebp: f4c945c0 esp: f4c89dc8 Sep 8 18:10:16 sjoerd
> kernel: ds: 0018 es: 0018 ss: 0018
> Sep 8 18:10:16 sjoerd kernel: Process python (pid: 2456,
> stackpage=f4c89000) Sep 8 18:10:16 sjoerd kernel: Stack: c0210bd2 c0210cc0
> 0000005f 40017000 f4c945c0 f5805d80 00000001 c012420f Sep 8 18:10:16
> sjoerd kernel: f5805d80 f4c945c0 f4c9c05c 00000001 40017000 40017000
> f5805d80 ffffffff Sep 8 18:10:16 sjoerd kernel: 00000001 c012434e
> f5805d80 f4c945c0 40017000 00000001 f4c9c05c f4c88000 Sep 8 18:10:16
> sjoerd kernel: Call Trace: [do_no_page+47/272] [handle_mm_fault+94/224]
> [do_page_fault+375/1136] [do_page_fault+0/1136]
> [block_read_full_page+240/688] Sep 8 18:10:16 sjoerd kernel:
> [error_code+52/64] [file_read_actor+113/224]
> [do_generic_file_read+505/1344] [generic_file_read+99/128]
> [file_read_actor+0/224] [sys_read+150/208] Sep 8 18:10:16 sjoerd kernel:
> [system_call+51/56]
> Sep 8 18:10:16 sjoerd kernel:
> Sep 8 18:10:16 sjoerd kernel: Code: 0f 0b 83 c4 0c 8b 15 e8 2f 2a c0 89 f0
> 2b 05 ac ba 2a c0 69 Sep 8 18:10:16 sjoerd kernel: kernel BUG at
> /usr/src/linux-2.4.10-pre4/include/asm/highmem.h:95! Sep 8 18:10:16 sjoerd
> kernel: kernel BUG at /usr/src/linux-2.4.10-pre4/include/asm/highmem.h:95!
> Sep 8 18:10:16 sjoerd kernel: invalid operand: 0000
> Sep 8 18:10:16 sjoerd kernel: CPU: 0
> Sep 8 18:10:16 sjoerd kernel: EIP: 0010:[do_wp_page+636/1088]
> Sep 8 18:10:16 sjoerd kernel: EFLAGS: 00010282
> Sep 8 18:10:16 sjoerd kernel: eax: 00000043 ebx: bffff960 ecx:
> f5764260 edx: f4ce4000 Sep 8 18:10:16 sjoerd kernel: esi: c26d04d0
> edi: ffffffff ebp: c26ca4a8 esp: f4ce5ec8 Sep 8 18:10:16 sjoerd
> kernel: ds: 0018 es: 0018 ss: 0018
> Sep 8 18:10:16 sjoerd kernel: Process rc (pid: 2514, stackpage=f4ce5000)
> Sep 8 18:10:16 sjoerd kernel: Stack: c0210bd2 c0210cc0 0000005f bffff960
> f5805780 ffffffff 00000001 c012437d Sep 8 18:10:16 sjoerd kernel:
> f5805780 f4c54dc0 bffff960 f4ca8ffc 55e30065 f4ce4000 f4c54dc0 f5805780 Sep
> 8 18:10:16 sjoerd kernel: f580579c c0111a17 f5805780 f4c54dc0
> bffff960 00000001 f4ce4000 00000007 Sep 8 18:10:16 sjoerd kernel: Call
> Trace: [handle_mm_fault+141/224] [do_page_fault+375/1136]
> [do_page_fault+0/1136] [__mmdrop+58/64] [do_exit+595/640] Sep 8 18:10:16
> sjoerd kernel: [error_code+52/64]
> Sep 8 18:10:16 sjoerd kernel:
> Sep 8 18:10:16 sjoerd kernel: Code: 0f 0b 83 c4 0c 8b 15 e8 2f 2a c0 89 f0
> 2b 05 ac ba 2a c0 69 Sep 8 18:10:16 sjoerd kernel: kernel BUG at
> /usr/src/linux-2.4.10-pre4/include/asm/highmem.h:95! Sep 8 18:10:16 sjoerd
> kernel: invalid operand: 0000
> Sep 8 18:10:16 sjoerd kernel: CPU: 0
> Sep 8 18:10:16 sjoerd kernel: EIP: 0010:[filemap_nopage+300/1344]
> Sep 8 18:10:16 sjoerd kernel: EFLAGS: 00010282
> Sep 8 18:10:16 sjoerd kernel: eax: 00000043 ebx: 00000001 ecx:
> f5764260 edx: f4c3e000 Sep 8 18:10:16 sjoerd kernel: esi: c297ac20
> edi: 00000015 ebp: c270df9c esp: f4c3fb30 Sep 8 18:10:16 sjoerd
> kernel: ds: 0018 es: 0018 ss: 0018
> Sep 8 18:10:16 sjoerd kernel: Process ncpserv (pid: 2513,
> stackpage=f4c3f000) Sep 8 18:10:16 sjoerd kernel: Stack: c02110b2 c0211160
> 0000005f 40016000 f4c54f00 f4c62140 00000001 00000019 Sep 8 18:10:16
> sjoerd kernel: f7af9960 f74f7a24 f74f7980 f4db9c40 c0124252 f4c54f00
> 40016000 00000001 Sep 8 18:10:16 sjoerd kernel: 400162a8 f4c62140
> ffffffff 00000001 c012434e f4c62140 f4c54f00 400162a8 Sep 8 18:10:16
> sjoerd kernel: Call Trace: [do_no_page+114/272] [handle_mm_fault+94/224]
> [do_page_fault+375/1136] [do_page_fault+0/1136] [file_read_actor+177/224]
> Sep 8 18:10:16 sjoerd kernel: [update_atime+68/80]
> [do_generic_file_read+1333/1344] [do_munmap+86/640] [update_atime+68/80]
> [error_code+52/64] [clear_user+46/64] Sep 8 18:10:16 sjoerd kernel:
> [padzero+28/32] [load_elf_interp+619/704] [load_elf_binary+1959/2704]
> [load_elf_binary+0/2704]
> [nfsd:__insmod_nfsd_O/lib/modules/2.4.10-pre4/kernel/fs/nfsd/nfsd+-13721617
>/96] [search_binary_handler+152/496] Sep 8 18:10:16 sjoerd kernel:
> [do_execve+380/496] [do_execve+403/496] [sys_execve+47/96]
> [system_call+51/56] Sep 8 18:10:16 sjoerd kernel:
> Sep 8 18:10:16 sjoerd kernel: Code: 0f 0b 83 c4 0c 8b 15 e8 2f 2a c0 89 f0
> 2b 05 ac ba 2a c0 69 Sep 8 18:10:16 sjoerd kernel: LOOUT REJECT TCP IN=
> OUT=lo SRC=127.0.0.1 DST=127.0.0.1 LEN=356 TOS=0x02 PREC=0x00 TTL=64
> ID=32512 PROTO=TCP SPT=32775 DPT=15607 WINDOW=32767 RES=0x00 ACK PSH FIN
> URGP=0 Sep 8 18:10:16 sjoerd kernel: invalid operand: 0000
> Sep 8 18:10:16 sjoerd kernel: CPU: 0
> Sep 8 18:10:16 sjoerd kernel: EIP: 0010:[do_wp_page+636/1088]
> Sep 8 18:10:16 sjoerd kernel: EFLAGS: 00010282
> Sep 8 18:10:16 sjoerd kernel: eax: 00000043 ebx: 080b170c ecx:
> f4ce4260 edx: f5946000 Sep 8 18:10:16 sjoerd kernel: esi: c26dec2c
> edi: ffffffff ebp: c26ca2cc esp: f5947ec8 Sep 8 18:10:16 sjoerd
> kernel: ds: 0018 es: 0018 ss: 0018
> Sep 8 18:10:16 sjoerd kernel: Process rc (pid: 156, stackpage=f5947000)
> Sep 8 18:10:16 sjoerd kernel: Stack: c0210bd2 c0210cc0 0000005f 080b170c
> f752a080 ffffffff 00000001 c012437d Sep 8 18:10:16 sjoerd kernel:
> f752a080 f75282c0 080b170c f59de2c4 56197065 f5946000 f75282c0 f752a080 Sep
> 8 18:10:16 sjoerd kernel: f752a09c c0111a17 f752a080 f75282c0
> 080b170c 00000001 f5946000 00000007 Sep 8 18:10:16 sjoerd kernel: Call
> Trace: [handle_mm_fault+141/224] [do_page_fault+375/1136]
> [do_page_fault+0/1136] [copy_thread+136/160] [do_fork+1619/1792] Sep 8
> 18:10:16 sjoerd kernel: [write_chan+0/544] [sys_fork+20/32]
> [error_code+52/64] Sep 8 18:10:16 sjoerd kernel:
> Sep 8 18:10:16 sjoerd kernel: Code: 0f 0b 83 c4 0c 8b 15 e8 2f 2a c0 89 f0
> 2b 05 ac ba 2a c0 69 Sep 8 18:10:16 sjoerd kernel: kernel BUG at
> /usr/src/linux-2.4.10-pre4/include/asm/highmem.h:95! Sep 8 18:10:16 sjoerd
> kernel: invalid operand: 0000
> Sep 8 18:10:16 sjoerd kernel: CPU: 0
> Sep 8 18:10:16 sjoerd kernel: EIP: 0010:[do_wp_page+636/1088]
> Sep 8 18:10:16 sjoerd kernel: EFLAGS: 00010282
> Sep 8 18:10:16 sjoerd kernel: eax: 00000043 ebx: 080b04e0 ecx:
> f5735f7c edx: c299a000 Sep 8 18:10:16 sjoerd kernel: esi: c2962850
> edi: ffffffff ebp: c292d82c esp: c299bec8 Sep 8 18:10:16 sjoerd
> kernel: ds: 0018 es: 0018 ss: 0018
> Sep 8 18:10:16 sjoerd kernel: Process init (pid: 1, stackpage=c299b000)
> Sep 8 18:10:16 sjoerd kernel: Stack: c0210bd2 c0210cc0 0000005f 080b04e0
> f752a140 ffffffff 00000001 c012437d Sep 8 18:10:16 sjoerd kernel:
> f752a140 f7528180 080b04e0 f751a2c0 5f910065 c299a000 f7528180 f752a140 Sep
> 8 18:10:16 sjoerd kernel: f752a15c c0111a17 f752a140 f7528180
> 080b04e0 00000001 c299a000 00000007 Sep 8 18:10:16 sjoerd kernel: Call
> Trace: [handle_mm_fault+141/224] [do_page_fault+375/1136]
> [do_page_fault+0/1136] [copy_thread+136/160] [do_fork+1619/1792] Sep 8
> 18:10:16 sjoerd kernel: [sys_fork+20/32] [error_code+52/64] Sep 8
> 18:10:16 sjoerd kernel:
> Sep 8 18:10:16 sjoerd kernel: Code: 0f 0b 83 c4 0c 8b 15 e8 2f 2a c0 89 f0
> 2b 05 ac ba 2a c0 69
next prev parent reply other threads:[~2001-09-08 18:22 UTC|newest]
Thread overview: 43+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-09-08 5:22 grue
2001-09-08 5:47 ` Robert Love
2001-09-08 17:33 ` Arjan Filius
2001-09-08 18:22 ` safemode [this message]
2001-09-08 20:58 ` [SMP lock BUG?] " Roger Larsson
2001-09-08 22:18 ` Arjan Filius
2001-09-09 14:55 ` george anzinger
2001-09-09 22:25 ` Arjan Filius
2001-09-09 4:40 ` Robert Love
2001-09-09 17:09 ` Robert Love
2001-09-09 21:07 ` Arjan Filius
2001-09-09 21:26 ` Robert Love
2001-09-09 21:23 ` Arjan Filius
2001-09-09 21:37 ` Robert Love
2001-09-10 3:24 ` Daniel Phillips
2001-09-10 3:37 ` Jeremy Zawodny
2001-09-10 5:09 ` Robert Love
2001-09-10 18:25 ` Daniel Phillips
2001-09-10 21:29 ` Arjan Filius
2001-09-13 17:27 ` Robert Love
2001-09-14 7:30 ` george anzinger
2001-09-14 15:01 ` Robert Love
2001-09-11 19:47 ` Arjan Filius
2001-09-09 18:57 ` grue
2001-09-09 21:44 ` Robert Love
2001-09-11 22:53 Robert Love
2001-09-14 2:47 Dieter Nützel
[not found] <200109150444.f8F4iEG19063@zero.tech9.net>
[not found] ` <200109140302.f8E32LG13400@zero.tech9.net>
2001-09-14 4:35 ` Robert Love
2001-09-15 4:25 ` Dieter Nützel
2001-09-15 5:14 ` Robert Love
2001-09-18 4:06 ` Dieter Nützel
2001-09-18 8:35 ` Daniel Phillips
2001-09-18 18:18 ` Roger Larsson
2001-09-18 23:31 ` Robert Love
2001-09-20 6:40 ` Dieter Nützel
2001-09-18 23:31 ` Robert Love
[not found] <Pine.LNX.4.33.0109140838040.21992-100000@sjoerd.sjoerdnet>
2001-09-14 15:04 ` Robert Love
2001-09-15 9:44 ` Arjan Filius
2001-09-15 10:38 ` Erik Mouw
2001-09-15 17:57 ` Robert Love
2001-09-15 19:18 Robert Love
2001-09-16 1:28 ` Daniel Phillips
2001-09-16 1:54 ` Daniel Phillips
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