modules tutorial
Hello, Is there something like http://www.tldp.org/LDP/lkmpg/2.4/html/c147.htm but for NetBSD? /Jan
Re: Phoronix 8-way-BSD-install - NetBSD bombed
You know, despite all 7.0 has been a HUGE improvement performance-wise on my main laptop (it's the same one since 2010) compared to the 6.x series and whatever was before. I've just upgraded to 7.0.1, let's see how it works. 2016-09-14 18:17 GMT+03:00 : > I feel that for home users, -current may be a good choice. > > netbsd 7.0 is entirely unusable on much of my hardware. desktop was > extra bad. no USB3 means USB keyboard interrupts are lost or something, > need to boot with ACPI disabled (disables hyperthreading), cannot install > from USB, lack of graphical acceleration for nvidia cards means when > running old Xorg it took 1 minute to run a command like 'su', new Xorg > can handle until X is shut down once (all fixed in -current). >
Re: kernel load failure
On Wed, Sep 14, 2016 at 11:12:17AM -0500, Patrick Welche wrote: > I also tried tftp, and get stuck at the same value whether a kernel or > its compressed version is used - would that rule out the pxe boot side > of things? (FreeBSD iso served via its pxe boot from the same NetBSD > server also worked.) Can you show the output of "size netbsd" (for the uncompressed kernel) and what value you get stuck at? Also details from "readelf -e netbsd" might be interesting here. Martin
Re: kernel load failure
On Wed, Sep 14, 2016 at 06:02:37PM +0200, Martin Husemann wrote: > On Wed, Sep 14, 2016 at 10:57:26AM -0500, Patrick Welche wrote: > > > 9872659+10907160+995816 [12773]=0x165da30 > > > > Thanks - do you know what those numbers refer to? (I get stuck in the > > first one) > > size /netbsd, those are the bytes loaded so far for text and data (and > the size of bss, which is not loaded). > > If NFS locks up like this often read/write sizes are too big for one > of the network cards involved. Can we tune those for pxe boot somehow? I also tried tftp, and get stuck at the same value whether a kernel or its compressed version is used - would that rule out the pxe boot side of things? (FreeBSD iso served via its pxe boot from the same NetBSD server also worked.) (Really flumoxed, as the kernel which is running on the laptop I'm typing on currently doesn't load, yet they are very similar.) Cheers, Patrick
Re: kernel load failure
On Wed, Sep 14, 2016 at 10:57:26AM -0500, Patrick Welche wrote: > > 9872659+10907160+995816 [12773]=0x165da30 > > Thanks - do you know what those numbers refer to? (I get stuck in the > first one) size /netbsd, those are the bytes loaded so far for text and data (and the size of bss, which is not loaded). If NFS locks up like this often read/write sizes are too big for one of the network cards involved. Can we tune those for pxe boot somehow? Martin
Re: kernel load failure
On Wed, Sep 14, 2016 at 05:52:55PM +0300, Andreas Gustafsson wrote: > Patrick Welche wrote: > > > pxeboot & INSTALL from > > > > > > ftp://ftp.netbsd.org/pub/NetBSD/NetBSD-7.0.1/amd64/ > > > > > > behave in the same way, but stops at 12120088 > > For what it's worth, I have an automated testing setup that netboots > -current kernels using the -current pxeboot, and it's working. Though > it's loading the kernel over TFTP instead of NFS - perhaps that makes > a difference. In the 5.2.3 and 7.0.1 with INSTALL kernels, I used tftp, so I have failure in both cases... > Here's the log output from a successful boot for your reference: > 9872659+10907160+995816 [12773]=0x165da30 Thanks - do you know what those numbers refer to? (I get stuck in the first one) Cheers, Patrick
Re: Phoronix 8-way-BSD-install - NetBSD bombed
I feel that for home users, -current may be a good choice. netbsd 7.0 is entirely unusable on much of my hardware. desktop was extra bad. no USB3 means USB keyboard interrupts are lost or something, need to boot with ACPI disabled (disables hyperthreading), cannot install from USB, lack of graphical acceleration for nvidia cards means when running old Xorg it took 1 minute to run a command like 'su', new Xorg can handle until X is shut down once (all fixed in -current). on linux drivers are written before a release, or right after. so a typical user which has 2-3 year old hardware can afford to use LTS kernel. in netbsd, drivers only end up written after 2-3 developers get the hardware, and they don't get it on release day. so this is a 2 year delay in itself. after this many users end up picking netbsd 7.0 release, not knowing it is effectively like picking old ubuntu LTS, except with the additional delay until developers (which are normal people and not companies) obtain the hardware and get around to adding support. it's USB3 now, tomorrow it will bbe that legacy boot can't boot NVMe root and we have no UEFI bootloader yet (PR 51279), or no skylake ethernet, etc. the only thing a user with recent can do to bridge this gap is to use -current. it may rarely be broken, thoguh. If your hardware is unsupported, it's worth a try.
Re: kernel load failure
Patrick Welche wrote: > > pxeboot & INSTALL from > > > > ftp://ftp.netbsd.org/pub/NetBSD/NetBSD-7.0.1/amd64/ > > > > behave in the same way, but stops at 12120088 For what it's worth, I have an automated testing setup that netboots -current kernels using the -current pxeboot, and it's working. Though it's loading the kernel over TFTP instead of NFS - perhaps that makes a difference. Here's the log output from a successful boot for your reference: > NetBSD/x86 PXE boot, Revision 5.1 (from NetBSD 7.99.37) >> Memory: 569/2873920 k Press return to boot now, any other key for boot menu booting netbsd - starting in 5 seconds.4 seconds.3 seconds.2 seconds.1 seconds.0 seconds.0 seconds. PXE BIOS Version 2.1 Using PCI device at bus 4 device 4 function 0 Ethernet address 00:1b:fc:9e:0f:b4 9872659+10907160+995816 [12773]=0x165da30 ksyms: Symbol table not found ksyms: String table not found ksyms: Perhaps the kernel is stripped? Copyright (c) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016 The NetBSD Foundation, Inc. All rights reserved. Copyright (c) 1982, 1986, 1989, 1991, 1993 The Regents of the University of California. All rights reserved. NetBSD 7.99.37 (INSTALL) #0: Tue Sep 13 22:04:14 EEST 2016 -- Andreas Gustafsson, g...@gson.org
