Or have I been doing it wrong
and did that became visible?
Please advise.
thanks
Folkert van Heusden
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are workstation
7.1.4 with the vmware tools modules not installed because I have not
gotten around to upgrade them to a 3.5 kernel.
It is a 64 bit system with 8GB ram.
Folkert van Heusden
--
--
Phone: +31-6-41278122, P
ks up.
> What to do now?
This 3.1.0-rc9+ is, by the way, a kernel build on a different amd64
system using fakeroot make dep-pkg
Version 3.0.0-12 (I used an ubuntu kernel image) works fine by the way:
it boots, but it also succeeds in emitting AX.25 data via the baycom
driver.
Folkert van Heu
> It seems the baycom driver (for ham radio) needs some attention.
I'm trying to bisect this problem.
The problem now is, that the 3.1.0-rc9 crashes just after it loads the
initramfs. Well, it says it is doing that and then all fans speed-up and
the system locks up.
What to do now?
Fol
ing if I full duplex mode but I'm not entirely sure of
that (no second modem setup).
I verified the problem by listening with a second radio.
Folkert van Heusden
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example. They hate to share their irq. In fact: they refuse to work when
their irq is shared.
Folkert van Heusden
--
MultiTail na wan makriki wrokosani fu tan luku den logfile nanga san
den commando spiti puru. Piki puru spesrutu sani, wroko nanga difrenti
kroru, tya kon makandra, nang
outp(up, UART_FCR, fcr); /* set fcr */
}
serial8250_set_mctrl(&up->port, up->port.mctrl);
spin_unlock_irqrestore(&up->port.lock, flags);
}
But I don't know how to interface this to an ioctl or so.
All help is appreciated!
Folkert van Heus
. Can someone tell how I can proceed with this? Is it at all
possible to do this setting?
Folkert van Heusden
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Multi tail barnamaj mowahib li mora9abat attasjilat wa nataij awamir
al 7asoub. damj, talwin, mora9abat attarchi7 wa ila akhirih.
http://www.vanheusden.com/mult
d via fiddling with signalling lines
(for a dcf-77 radio clock) don't work. To be honest I used a vendor
kernel, a Debian 2.6.22-3-amd64 image.
Is this a known problem?
Folkert van Heusden
--
MultiTail cok yonlu kullanimli bir program, loglari okumak, verilen
kommandolari yerine getirebil
radio clock) don't work. To be honest I used a vendor
kernel, a Debian 2.6.22-3-amd64 image.
Is this a known problem?
Folkert van Heusden
--
MultiTail cok yonlu kullanimli bir program, loglari okumak, verilen
kommandolari yerine getirebilen. Filter, renk verme, merge, 'diff-
v
maybe such processes should be scheduled to other cores as well?
Folkert van Heusden
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Multitail - gibkaja utilita po sledovaniju log-fajlov i vyvoda
kommand. Fil'trovanie, raskraivanie, slijanie, vizual'noe sravnenie,
i t.d. http://www.vanh
laptop build so it takes
> > less than 30min to build a kernel.
>
> Ehh? You do it once, then leave it aside or in /proc/config.gz, on new
> kernel copy it back, "make oldconfig", answer several questions and here
> we go.
Ah yes, but then you buy a new s
[ 7393.914433] [] generic_file_aio_write+0x58/0xc4
[ 7393.914440] [] ext3_file_write+0x2d/0xba
[ 7393.914445] [] do_sync_write+0xc7/0x116
[ 7393.914448] [] vfs_write+0x158/0x15d
[ 7393.914452] [] sys_write+0x3d/0x64
[ 7393.914455] [] syscall_call+0x7/0xb
[ 7393.914460] ===
ysdn_net.c:char *hysdn_net_revision = "$Revision: 1.8.6.4
$";
./drivers/isdn/hardware/eicon/diva_didd.c:char *DRIVERRELEASE_DIDD = "2.0";
./drivers/isdn/hardware/eicon/divasmain.c:char *DRIVERRELEASE_DIVAS = "2.0";
./drivers/isdn/hardware/eicon/divasi.c:char *D
SCSI disk support' is required for SATA/PATA HDDs!"
> depends on ATA && !BLK_DEV_SD
Yes! Maybe create some status-line at the bottom of the screen in which
these hints scrollby. Like powertop does.
Folkert van Heusden
--
MultiTail är en flexibel redskap för att fälja logf
epending on your hardware configuration.
Yes but that would mean that you have to open the help for each item
that you add.
> A popup makes some sense, but I don't know if menuconfig knows how to
> do popup warnings... and it needs to be done for all *configs,
> not just menucon
t
> with only sr support.
Ok, but that's not the most common situaties. What I'm suggesting is a
warning or a please note popup. Not neccessarily an error or refusing to
continue thing.
Folkert van Heusden
--
www.vanheusden.com/multitail - win een vlaai van multivlaai! zorg
ervoor da
Hi,
Maybe it is a nice enhancement for make menuconfig to more explicitly
give a pop-up or so when someone selects for example a sata controller
while no 'scsi-disk' support was selected?
Folkert van Heusden
--
Multi tail barnamaj mowahib li mora9abat attasjilat wa nataij awamir
prepare_write+0x28/0x3b
[ 7382.929953] [] ext3_prepare_write+0xe3/0x17e
[ 7382.929957] [] generic_file_buffered_write+0x1b4/0x614
[ 7382.929961] [] __generic_file_aio_write_nolock+0x23a/0x533
[ 7382.929966] [] generic_file_aio_write+0x58/0xc4
[ 7382.929970] [] ext3_file_write+0x2d/0xba
[ 7382.92
/ (for video4linux)
a try.
And no, audio-entropyd won't fill up the entropy pool in a second, it
takes a while. And often video-entropyd bails out because of not enough
noise in the video-signal.
Folkert van Heusden
--
MultiTail er et flexible tool for å kontrolere Logfiles og commandoer.
Med filt
53041] [] __generic_file_aio_write_nolock+0x23a/0x533
[ 346.353121] [] generic_file_aio_write+0x58/0xc4
[ 346.353200] [] ext3_file_write+0x2d/0xba
[ 346.353281] [] do_sync_write+0xc7/0x116
[ 346.353364] [] vfs_write+0x158/0x15d
[ 346.353444] [] sys_write+0x3d/0x64
[ 346.353524] [] syscal
on and an idea: Q: is ecc guaranteed to detect all bitflips?
Idea: what about a multicore system (3 or more) that runs the same
processes on 2 cores and a third core verifying that they both do the
same? As I think it is not only ram that can become faulty.
Folkert van Heusden
--
MultiTail
> My application reads from socket. I need to change the behavior of read
> system call for an experiment. Can someone point me to code?
Wouldn't it be easier to create a preload-library-wrapper around glibc?
Folkert van Heusden
--
MultiTail is a versatile tool for watching l
h (family) {
51 case AF_INET:
52 h ^= __xfrm4_daddr_saddr_hash(daddr, saddr);
53 break;
I very much hope it is of any help.
Folkert van Heusden
--
www.vanheusden.com/multitail - win een vlaai van multi
152 &wait, TASK_UNINTERRUPTIBLE);
153 spin_unlock(&journal->j_state_lock);
154 schedule();
155 finish_wait(&journal->j_wait_transaction_locked, &wait);
156 goto re
[783336.561432] CR0: 8005003b CR2: b7af3000 CR3: 1dd3c000 CR4: 06d0
[783336.561473] ===
I've put the output of alt+srq+t at
http://keetweej.vanheusden.com/~folkert/ast.txt as it is halve a
megabyte in size.
Anyone can give a suggestion of what is going on? And
] [] apic_timer_interrupt+0x33/0x38
[169034.198162] ===
Folkert van Heusden
--
MultiTail ist eine flexible Applikation um Logfiles und Kommando
Eingaben zu überprüfen. Inkl. Filter, Farben, Zusammenführen,
Ansichten etc. http://www.vanheusden.com/multitail
[228719.552886] [] cpu_idle+0x6b/0x85
[228719.552982] [] start_secondary+0xe8/0x30a
[228719.553086] [<>] 0x0
[228719.553207] ===
Folkert van Heusden
--
Feeling generous? -> http://www.vanheusden.com/wis
escription:
> This patch adds code to the signal-sender making it log a message when
> an unhandled fatal signal will be delivered.
New version. This one also informs the user about the sende pid/uid of
the signal (when applicable).
Signed-of by: Folkert van Heusden <[EMAIL PROTECTED]
---
puzzled why cpu_idle is called anyway as the load of the
system is on average at least 2.5 (see
http://keetweej.vanheusden.com/load.png ).
Folkert van Heusden
--
Multitail - gibkaja utilita po sledovaniju log-fajlov i vyvoda
kommand. Fil'trovanie, raskraivanie, slijanie, vizual'
how can I find which device is triggering those "ehci_hcd:usb1,
uhci_hcd:usb8, wcfxo" interrupts?
Folkert van Heusden
--
MultiTail ist eine flexible Applikation um Logfiles und Kommando
Eingaben zu überprüfen. Inkl. Filter, Farben, Zusammenführen,
Ansichten etc. http://www.vanh
if (delayed_work_pending(&npinfo->tx_work)) {
> cancel_rearming_delayed_work(&npinfo->tx_work);
> flush_scheduled_work();
> -
> - kfree(npinfo);
>
_stats+0x4e/0x6f
[361753.930807] [] hrtimer_interrupt+0x184/0x1e3
[361753.930890] [] local_apic_timer_interrupt+0x55/0x5b
[361753.930973] [] smp_apic_timer_interrupt+0x2a/0x39
[361753.931055] [] apic_timer_interrupt+0x33/0x38
[361753.931139] ===
Folkert van Heusden
--
Mul
a NIC whose device
> > driver hasn't been configured to feed entropy, you're definitely
> > hosed.
>
> Can we get at least time-of-boot from rtc clock to the pool? We really
> should not be getting identical outputs...
And add readings from lm-sensors as well? I gue
en 10 ret -110
[ 1292.121131] usb 7-2: usbfs: USBDEVFS_CONTROL failed cmd newhidups rqt 161 rq
1 len 10 ret -110
and about the nfs server temporarily not available. Please note that I
did not do the rmmod from a nfs mountpoint.
Folkert van Heusden
--
Multitail - gibkaja u
s 100% cpu, so it busy loops at some place. Looking at the stack
> trace this seems to be in:
> void cancel_rearming_delayed_workqueue(struct workqueue_struct *wq,
>struct delayed_work *dwork)
> {
> while (!cancel_delayed_work(dwork))
>
ing 100% cpu and not
returning). Because now when the destination system gets a new
network-card or anything else changes I need to reboot the complete
(sending) machine.
Folkert van Heusden
--
MultiTail est un flexible tool pour suivre de logfiles et execution de
commandements. Filtrer, pourvoir de c
on/312: ok |
[ 44.537216] hard-irq read-recursion/321: ok |
[ 44.537454] soft-irq read-recursion/321: ok |
[ 44.537693] ---
[ 44.537733] Good, all 218 testcases passed! |
[ 44.537774] -
exit even with kill -9. It also
sucks up 100% cpu.
Folkert van Heusden
--
MultiTail es una herramienta flexibele para consiguir archivos de log,
y para ejecutar ordenes. Filtrar, añadir colores, merger y vista de
las differencias. http://www.vanheusden.com/multitail
> >> t->pid, t->uid, t->gid, t->comm);
> >
>
> Gargh ... why does this want to be in the *kernel*'s logs? In any case, can
> you please make this KERN_INFO (or lower) instead of KERN_WARNING.
Description:
This patch adds code to the signal-sender mak
ks if the handler is set to default - which is it is not taken care
> > of.
> What about ptrace()'d processes? I don't think we should log signals for
> them...
Why not?
Folkert van Heusden
--
MultiTail es una herramienta flexibele para consiguir archivos de log,
y
patch adds code to the signal-sender making it log a message when
an unhandled fatal signal will be delivered.
Signed-off by: Folkert van Heusden <[EMAIL PROTECTED]>
--- kernel/signal.c.org 2007-05-20 22:47:13.0 +0200
+++ kernel/signal.c 2007-05-21 14:46:05.0 +0200
@@ -739,
process and only then emit a message. So when an application
takes care itself of handling it nothing is printed.
Signed-off by: Folkert van Heusden <[EMAIL PROTECTED]>
--- kernel/signal.c.org 2007-05-20 22:47:13.0 +0200
+++ kernel/signal.c 2007-05-21 12:59:52.0 +020
rnally? Afaik these are fatal, stopping the
> process. So using them internally would be a little tricky.
> > But I think your list is far too long anyways.
>
> So, which ones would you like to have removed then?
(and why, of course, to enlighten me: some are educated guesses)
F
So using them internally would be a little tricky.
> But I think your list is far too long anyways.
So, which ones would you like to have removed then?
Folkert van Heusden
--
To MultiTail einai ena polymorfiko ergaleio gia ta logfiles kai tin
eksodo twn entolwn. Prosferei: filtra
ith switch(), I would assume gcc transforms it into using
> a jump table (aka "JMP [table+sig]")
> I tried it: with switch(), gcc transforms this into a
> bitmap comparison ("MOV eax, 1; SHL eax, sig; TEST eax, 0x830109f8"),
> which seems even cheaper than a jump table
th 2.6.21.1 it still applies altough
> > > >with a small offsets. Works like a charm.
> > > >
> > > >Signed-off by: Folkert van Heusden <[EMAIL PROTECTED]>
> > > >--- linux-2.6.18.2/kernel/signal.c 2006-11-0
ugh
> >with a small offsets. Works like a charm.
> >
> >Signed-off by: Folkert van Heusden <[EMAIL PROTECTED]>
> >--- linux-2.6.18.2/kernel/signal.c 2006-11-04 02:33:58.0 +0100
> >+++ linux-2.6.18.2.new/kernel/signal.c 2006-11-17 15:59:13.
charm.
Signed-off by: Folkert van Heusden <[EMAIL PROTECTED]>
--- linux-2.6.18.2/kernel/signal.c 2006-11-04 02:33:58.0 +0100
+++ linux-2.6.18.2.new/kernel/signal.c 2006-11-17 15:59:13.0 +0100
@@ -706,6 +706,15 @@
struct sigqueue * q = NULL;
int ret = 0
s uid...
Yeah well it's all captured by syslogd/klogd and written to a file and
diskspace is cheap.
Folkert van Heusden
--
Feeling generous? -> http://www.vanheusden.com/wishlist.php
--
Phone: +31-6-41278122, PGP-key: 1F28
achine to give more details right now (19:00 gmt+1 i can).
> > > > >> For now, this is the oops:
> > > > >> [13092.479019] BUG: unable to handle kernel paging request at virtual
> > > > >> address b9d0458f
> > > > Timer
ht now (19:00 gmt+1 i can).
> > >> For now, this is the oops:
> > >> [13092.479019] BUG: unable to handle kernel paging request at virtual
> > >> address b9d0458f
> > Timer hash list contains a user address.
>
> Dammit. It's a HT enabled box again. I don&#x
s a fix. Andrew,
> would you add it? Thanks.
>
> Honza
>
> On Mon 14-05-07 19:43:18, Michal Piotrowski wrote:
> > [adding Jan and fsdevel to CC]
> >
> > Hi Folkert,
> >
> > On 14/05/07, Folkert van Heusden <
Hi,
After an uptime of, say, 4 hours I got an oops on my P4 with HT and 2GB ram.
It has dynamic ticks enabled as well has timer stats. I cannot reboot the
machine to give more details right now (19:00 gmt+1 i can).
For now, this is the oops:
[13092.479019] BUG: unable to handle kernel paging req
> [adding Jan and fsdevel to CC]
> Hi Folkert,
> >When I cleanly reboot my pc running 2.6.21 on a P4 with HT and 2GB of ram
> >and system on an 1-filesystem IDE disk, I get the following circular
> >locking dependency erro
Hi,
When I cleanly reboot my pc running 2.6.21 on a P4 with HT and 2GB of ram
and system on an 1-filesystem IDE disk, I get the following circular
locking dependency error:
[330961.226405] ===
[330961.226489] [ INFO: possible circular locking de
Hi,
When I cleanly reboot my pc running 2.6.21 on a P4 with HT and 2GB of ram
and system on an 1-filesystem IDE disk, I get the following circular
locking dependency error:
[330961.226405] ===
[330961.226489] [ INFO: possible circular locking de
Hi,
Maybe it is a nice idea to export statistics on the usage of a journal
of a filesystem as well. That way one can more easy see if it would help
to put a journal on an other harddisk.
Folkert van Heusden
--
MultiTail es una herramienta flexibele para consiguir archivos de log,
y para
It looks like this solves the hid-problem. But I still get the
occasional 'not responding but still forwarding network-traffic(!)' and
'ext3 circular lock failure' problems.
Folkert van Heusden
--
To MultiTail einai ena polymorfiko ergaleio gia ta logfiles kai tin
ekso
dev code for a pretty long time.
It is the first time this happened altough with 2.6.21 I get relatively
frequent warnings of circular locks dependencies. This is the first time
it was followed by an oops.
Connected via hid are 2 temperature sensors and an UPS. Has been running
fine for ages.
3/0xf6
[10371.138541] [] hid_irq_in+0x164/0x169
[10371.138633] [] usb_hcd_giveback_urb+0x47/0xa4
[10371.138719] [] uhci_giveback_urb+0x74/0x130
I reported other bugs on circular locks also happening in this
show_trace_log_lvl part.
Folkert van Heusden
--
Temperature outside:23.562500, tempe
Thu, May 03, 2007 at 10:31:23PM +0200, Michal Piotrowski wrote:
> On 03/05/07, Folkert van Heusden <[EMAIL PROTECTED]> wrote:
> >My P4 with HT and 2GB of ram on an IDE disk succeeded in triggering
> >another bug:
> >
> >[273187.872796] usb 7-2: usbfs: USBDEVFS_CONTROL
ondary+0xe8/0x30a
[286630.886991] [<>] 0x0
[286630.887088] ===
[290177.972351] usb 7-2: usbfs: USBDEVFS_CONTROL failed cmd newhidups rqt 161
rq 1 len 10 ret -110
My .config can be found here:
http://keetweej.vanheusden.com/~folkert/config-2.6.21.1
Folkert
eneric_file_aio_write_nolock+0x2ae/0x5ad
[ 7429.855422] [] generic_file_aio_write+0x58/0xc4
[ 7429.855426] [] ext3_file_write+0x2d/0xba
[ 7429.855430] [] do_sync_write+0xc7/0x116
[ 7429.855433] [] vfs_write+0x158/0x15d
[ 7429.855440] [] sys_write+0x3d/0x64
[ 7429.855445] [] syscall_call+0x7/0xb
[ 7429
point with the last message being:
Apr 26 23:47:11 muur upsd[2828]: Client on 127.0.0.1 logged out
On Mon, Apr 23, 2007 at 05:58:06PM +0200, Folkert van Heusden wrote:
> System: kernel 2.6.20
> P4
> 2GB ram
> 512 MB swap
>
> Situation:
> Sometimes syste
istering. parent: vc, set: devices
[3535514.470260] kobject_uevent_env
[3535514.470305] fill_kobj_path: path = '/class/vc/vcsa3'
(as you can see, the login process gets shot by signal 3 (SIGQUIT))
Anything else I can try?
I also found a list of stacktraces of all processes running in the
syste
rsing a few GB of data and forgot to add some progress counter.
When after an hour of processing the script still has not stopped, I'd
like to see how much it processed so that I can estimate how long I
still have to wait and if it is worthwhile to stop the script for
optimalisations and such
> > I'd say "feature", glibc's malloc also returns an address on
> > malloc(0).
> >
> This is implementation defined-the standard allows for return of either
> null or an address.
Entirely for entertainment: AIX (5.3) returns NULL, IRIX re
> I thought you are trying to diagnose a bug and maybe Folkert could test,
> if this patch makes any difference. Sorry, if I missed the real problem.
Yes please let me know when I can test a patch.
Folkert van Heusden
--
www.biglumber.com <- site where one can exchange PGP key s
> > On Tue, 13 Mar 2007 17:50:14 +0100 Folkert van Heusden <[EMAIL PROTECTED]>
> > wrote:
> > ...
> > [ 1756.728209] BUG: workqueue leaked lock or atomic: nfsd4/0x/3577
...
> > [ 1846.684023] [] kernel_thread_helper+0x7/0x10
> Oleg, that's
un_workqueue+0x167/0x170
[ 137.472779] [] worker_thread+0x146/0x165
[ 137.472861] [] kthread+0x97/0xc4
[ 137.472943] [] kernel_thread_helper+0x7/0x10
[ 137.473026] ===
Folkert van Heusden
--
MultiTail is a versatile tool for watching logfiles and outpu
S is the define to use.
Ok, changed:
Signed-off-by: Folkert van Heusden <[EMAIL PROTECTED]>
--- ./drivers/net/hamradio/baycom_ser_fdx.c.org 2007-03-04 22:24:47.0
+0100
+++ ./drivers/net/hamradio/baycom_ser_fdx.c 2007-03-04 22:42:51.0
+0100
@@ -413,11 +4
Hi,
The baycom_ser_fdx driver did not allow i/o ports >= 0x1000. Now that
there are pci cards (with rs232 ports) which use for example 0xb800 this
limit should not exists.
Also, for non kernel coders find the cause of problems was challenging
so I added extra logging.
Signed-off-by: Folkert
+0x2d/0xba
[ 141.715666] [] do_sync_write+0xc7/0x116
[ 141.715671] [] vfs_write+0x182/0x187
[ 141.715675] [] sys_write+0x3d/0x64
[ 141.715679] [] syscall_call+0x7/0xb
[ 141.715682] ===
System is a P4 with HT, 3.2GHz, 2GB ram. Filesystem is ext3.
Folkert van Heusden
ww
ing- SERR+ FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort-
SERR-
Folkert van Heusden
p.s. maybe we should change the console to white on blue after a panic?
that's a little more consistent with other crashing comput
re more people run into the same problem)
Not wanting to put you under pressure but when is that version expected?
Folkert van Heusden
--
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---
> > regarding alignment that don't allow clear_page() to be used
> > copy_page() in the memcpy() case), but it's going to need a lot of
Maybe these optimalisations should be in the coding style docs?
Folkert van Heusden
--
Ever wonder what is out there? Any alien race
r an entire page"
> instruction there has been hardware like that in the past, even on
> x86, just it's no longer sold afaik)
Folkert van Heusden
--
www.biglumber.com <- site where one can exchange PGP key signatures
--
abused email
>address owners.
Spammers will fake the from-address, possibly using the address of a
spam-trap for the from-field. Your challenge will then be sent to the
spam-trap, causing vger to be blacklisted.
Folkert van Heusden
--
Temperature outside:8.562500, temperature l
from a video4linux device,
e.g. a webcam or a framegrabber or whaterver
Folkert van Heusden
--
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ervoor dat multitail opgenomen wordt in Fedora Core, AIX, Solaris of
HP/UX en win een vlaai naar
: yes
cpuid level : 1
wp : yes
flags : fpu de tsc msr cx8 mtrr pge cmov mmx fxsr sse fxsr_opt up
bogomips: 2001.30
Folkert van Heusden
--
www.biglumber.com <- site where one can exchange PGP key signatures
---
roblems with
processes you dind't know they have bugs and flakey hardware (sig 11).
Folkert van Heusden
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Ever wonder what is out there? Any alien races? Then please support
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in glibc, to have not only
> > stderr, but syslog, or /dev/kmsg copy of fatal messages?
> Afaik when a proces gets shot because of a segfault, also the libraries
> it used are shot so to say. iirc some of the more fatal signals are
> handled directly by the kernel.
Also: what a
ave not only
> stderr, but syslog, or /dev/kmsg copy of fatal messages?
Afaik when a proces gets shot because of a segfault, also the libraries
it used are shot so to say. iirc some of the more fatal signals are
handled directly by the kernel.
Folkert van Heusden
--
www.biglumber.com <-
Hi,
I found that sometimes processes disappear on some heavily used system
of mine without any logging. So I've written a patch against 2.6.18.2
which emits logging when a process emits a fatal signal.
Signed-off-by: Folkert van Heusden <[EMAIL PROTECTED]>
--- linux-2.6.18.2/kern
Running klive on a sparc.
Now I wonder: what should/can I run to help by testing a kernel? The sun
is dedicated for the testing so everything is possible.
Folkert van Heusden
--
Try MultiTail! Multiple windows with logfiles, filtered with regular
expressions, colored output, etc. etc
> 05:02.0 Network controller: Broadcom Corporation BCM4318 [AirForce One 54g]
> 802.11g Wireless LAN Controller (rev 02)
Give 'ndiswrapper' a try. Works pretty well for me.
Folkert van Heusden
--
Try MultiTail! Multiple windows with logfiles, filtered with regular
expressions
osal, it cooperates with the page
> cache.
Doesn't that one also use copying? I've also heard that using mmap is
expensive due to pagefaulting. I've found, for example, that copying a
1.3GB file using read/write instead of mmap & memcpy is seconds faster.
Folk
in the proces' memory. Of
course copying a sector from kernel- to userspace can be done pretty
fast but i.m.h.o. all possible speedimprovements should be made unless
unclean.
Folkert van Heusden
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Auto te koop, zie: http://www.vanheusden.com/daihats
1PM +1000, Con Kolivas wrote:
> Respin of the dynamic ticks patch for i386 by Tony Lindgen and Tuukka
> Tikkanen
> with further code cleanups. Are were there yet?
>
> Cheers,
> Con
> ---
>
>
Folkert va
> > > Maybe new desktop systems - but what about the tens of millions of old
> > > systems that don't.
> >
> > Does anyone really give a shit about saving power on the desktop anyway?
> > This is basically a laptop issue.
>
> Eh yes, very much.
ool, wordmask*4);
Isn't it cleaner to replace the line above with:
+ prefetch_range(r->pool, wordmask * sizeof(__u32));
as the pool contains u32 words?
> input_rotate = r->input_rotate;
> add_ptr = r->add_ptr;
>
Doesn't park here:
ehm:/home/folkert# ./park /dev/hda
head not parked 4c
ehm:/home/folkert# hdparm -i /dev/hda
/dev/hda:
Model=IC25N060ATMR04-0, FwRev=MO3OAD5A, SerialNo=MRG357K3KKN0XH
Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs }
RawCHS=16383/16/63, TrkSize=0, SectSize=
On Wed, 2005-04-13 at 10:41 -0400, Lennart Sorensen wrote:
> On Wed, Apr 13, 2005 at 09:26:28AM -0500, Eric Rannaud wrote:
> > On Wed, 2005-04-13 at 09:02 -0400, Lennart Sorensen wrote:
> > > modprobe nvidia || m-a -t prepare nvidia && m-a -t build nvidia && m-a -t
> > > install nvidia && modprobe
7;-
> > value.
> I'd like to retain ability to read suspend image in any order (so that
> code can be reused for swap encryption, etc).
In that case: encrypt the blocknumber with the key, and then use the
outcome as IV for the encryption of the data. Or calculate a hash over the
.. You probably should use
> block number as a IV or something like that.
Or use a feedback loop: xor your data with the outcome of the previous
round. And for the initial block use 0x00...00 for 'previous block'-
value.
Folkert van Heusden
Auto te koop, zie: http://www.vanheusden.
data.
> This works on my x86_64 laptop (64bit mode) and probably needs testing
> on other platforms.
What about an option for an user-defined key? One that can be set when
suspending?
Folkert van Heusden
Auto te koop! Zie: http://www.vanheusden.com/daihatsu.php
Op zoek naar een IT of Finan
11757 IO-APIC-level aic7xxx, usb-uhci, eth0
Folkert van Heusden
Auto te koop! Zie: http://www.vanheusden.com/daihatsu.php
Op zoek naar een IT of Finance baan? Mail me voor de mogelijkheden!
+--+
|UNIX admin? Then give Mult
> I already posted one, posts ago.
> >>[snip]
> >Imporved version:
> >[snip]
> >char *dummy = (char *)malloc(1);
> That cast is not supposed to be there, is it? (To pretake it: it's bad.)
What is so bad about it?
Folkert van Heusden
Op zoek naar e
gt; int main()
> {
> while(1){
> while(fork()){
> malloc(1);
> }
> }
> }
Imporved version:
int main()
{
while(1) {
while(fork()) {
char *dummy = (char *)malloc(1);
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