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 Forum index » Advanced Topics » Cutting edge
Running with compressed kernelmodules
Moderators: Flash, Ian, JohnMurga
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Author Message
Karl Godt


Joined: 20 Jun 2010
Posts: 4207
Location: Kiel,Germany
PostPosted: Wed 02 Feb 2011, 10:20    Post subject:  
Quote:
bb modprobe seems to ignore module.alias even if support for modules.alias is enabled ( perhaps just for depmod )

I found out, that this is fortunately not true Smile
Unfortunately it seems that every mainboard has got different additional modaliases which are not listed in modules.alias .
So it looks in the .alias file but only mentions that it cannot find it in the .dep file Embarassed .
I tested it by restoring the dirs /lib/modules/`uname -r`/* and copying the uhci-hcd module back from /pup_new/lib/* into it , running depmod , adding a PS2-keyboard to the USB-keyboard and modprobe [ -r ] uhci-hcd / modprobe pci:v*d*sv*sd*bc0Csc03i00* : this both worked to switch the USB-keyboard on/off . Very Happy

Another bb-feature to try is `bootchartd start` but it presents three large log files with somehow unuseable data :
[/var/log/]proc_diskstats.log : after several minute > 13,000 lines of
Quote:
9174
2 0 fd0 0 0 0 0 0 0 0 0 0 0 0
2 1 fd1 0 0 0 0 0 0 0 0 0 0 0
1 0 ram0 0 0 0 0 0 0 0 0 0 0 0
1 1 ram1 0 0 0 0 0 0 0 0 0 0 0
1 2 ram2 0 0 0 0 0 0 0 0 0 0 0
1 3 ram3 0 0 0 0 0 0 0 0 0 0 0
1 4 ram4 0 0 0 0 0 0 0 0 0 0 0
1 5 ram5 0 0 0 0 0 0 0 0 0 0 0
1 6 ram6 0 0 0 0 0 0 0 0 0 0 0
1 7 ram7 0 0 0 0 0 0 0 0 0 0 0
1 8 ram8 0 0 0 0 0 0 0 0 0 0 0
1 9 ram9 0 0 0 0 0 0 0 0 0 0 0
1 10 ram10 0 0 0 0 0 0 0 0 0 0 0
1 11 ram11 0 0 0 0 0 0 0 0 0 0 0
1 12 ram12 0 0 0 0 0 0 0 0 0 0 0
1 13 ram13 0 0 0 0 0 0 0 0 0 0 0
1 14 ram14 0 0 0 0 0 0 0 0 0 0 0
1 15 ram15 0 0 0 0 0 0 0 0 0 0 0
7 0 loop0 0 0 0 0 0 0 0 0 0 0 0
7 1 loop1 0 0 0 0 0 0 0 0 0 0 0
7 2 loop2 0 0 0 0 0 0 0 0 0 0 0
7 3 loop3 0 0 0 0 0 0 0 0 0 0 0
7 4 loop4 0 0 0 0 0 0 0 0 0 0 0
7 5 loop5 0 0 0 0 0 0 0 0 0 0 0
7 6 loop6 0 0 0 0 0 0 0 0 0 0 0
7 7 loop7 0 0 0 0 0 0 0 0 0 0 0
8 0 sda 2040 445 17254 7196 44 0 448 24 0 7192 7220
8 1 sda1 182 31 1474 536 2 0 16 0 0 536 536
8 2 sda2 3 0 18 0 0 0 0 0 0 0 0
8 3 sda3 232 10 1898 872 2 0 16 0 0 872 872
8 4 sda4 3 31 48 8 0 0 0 0 0 8 8
8 5 sda5 573 7 4972 2000 28 0 320 16 0 1992 2016
8 6 sda6 211 18 1730 576 2 0 16 0 0 576 576
8 7 sda7 3 15 48 16 0 0 0 0 0 16 16
8 8 sda8 306 7 2466 768 2 0 16 4 0 772 772
8 9 sda9 239 34 1954 1336 2 0 16 4 0 1340 1340
8 10 sda10 223 18 1826 628 2 0 16 0 0 628 628
8 11 sda11 12 31 114 36 2 0 16 0 0 36 36
8 12 sda12 17 18 178 112 2 0 16 0 0 112 112
8 13 sda13 5 99 104 36 0 0 0 0 0 32 36
8 14 sda14 7 99 120 32 0 0 0 0 0 32 32
8 15 sda15 7 21 120 28 0 0 0 0 0 28 28
259 0 sda16 0 0 0 0 0 0 0 0 0 0 0
11 0 sr0 5 0 20 88 0 0 0 0 0 88 88

proc_ps.log : > 10,000 lines
9174
Quote:
1 (sh) S 0 0 0 0 -1 4202752 3870 270133 0 0 10 104 1476 379 20 0 1 0 2 1241088 256 4294967295 12587008 13072608 3216404416 3216398668 134773413 0 0 16388 134217730 0 0 0 0 0 0 0 0 0 0
2 (kthreadd) S 0 0 0 0 -1 2149621824 0 0 0 0 0 0 0 0 15 -5 1 0 2 0 0 4294967295 0 0 0 0 0 0 0 2147483647 0 0 0 0 0 0 0 0 0 0 0

2165 (loop4) S 2 0 0 0 -1 2149621824 0 0 0 0 0 0 0 0 0 -20 1 0 2879 0 0 4294967295 0 0 0 0 0 0 0 2147483647 0 0 0 0 17 0 0 0 0 0 0
2245 (syslogd) S 1 2245 2245 0 -1 4202560 8 0 0 0 0 2 0 0 20 0 1 0 3077 1236992 250 4294967295 12587008 13072608 3216062592 3216057728 134521406 0 0 5 16386 0 0 0 17 0 0 0 0 0 0
2247 (klogd) S 1 2247 2247 0 -1 4202816 11 0 0 0 1 2 0 0 20 0 1 0 3084 1236992 253 4294967295 12587008 13072608 3213436064 3213431248 134522916 0 0 1 58751526 0 0 0 17 0 0 0 0 0 0
2248 (bootchartd) R 1 0 0 0 -1 4202816 11 0 0 0 0 0 0 0 20 0 1 0 3091 1245184 255 4294967295 12587008 13072608 3213270112 3213260572 134521406 0 0 0 18951 0 0 0 17 0 0 0 0 0 0

proc_stat.log > 2,900 lines
Quote:
9174
cpu 1488 0 504 6525 641 6 8 0 0
cpu0 1488 0 504 6525 641 6 8 0 0
intr 25680 71 8 0 0 0 0 3 0 0 0 0 525 0 0 2090 66 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
ctxt 16612
btime 1296654903
processes 2251
procs_running 1
procs_blocked 0

and a header file of 4 lines
Quote:
version = 0.8
title = Boot chart for (none) (Wed Feb 2 13:56:34 UTC 2011)
system.uname = Linux 2.6.30.5 #1 SMP Tue Sep 1 15:48:26 GMT-8 2009 i686
system.kernel.options = psubdir=JUMP-5 pdev=sdb5 vga=normal debug panic=40 pfix=rdsh

whose data is found also at /tmp/bootkernel.log &| /var/log/messages .
bootchartd also needs tar enabled ( produces a /var/log/bootchart.tgz ) .
So these both (bootchartd/tar) can be disabled with good awareness !
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Karl Godt


Joined: 20 Jun 2010
Posts: 4207
Location: Kiel,Germany
PostPosted: Mon 07 Feb 2011, 10:45    Post subject:  
About running `init` at the rdsh :
Code:
#RDSH is a boot param. exit to initial ramdisk shell...
if [ "$RDSH" = "yes" ];then
 [ "` which syslogd`" != "" ] && syslogd &
 [ "`which klogd`" != "" ] && klogd &
 [ "` which bootchartd`" != "" ] && [ "`which tar `" != "" ] && bootchartd start &
 echo > /dev/console
 echo "Dropped to initramfs shell. Type 'exec switch' to continue booting Puppy." > /dev/console
 exec init
 echo `ps | grep 1` >/dev/console
 ps | grep 1 > /tmp/PS.txt
 sleep 1
 exec /bin/sh >/dev/console 2>&1
fi

A: exec switch does not work anymore to continue booting Sad
B: kill[all] 1 [init] is a simple way to reboot immediately Laughing
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