Re: implement CLOCK_VIRTUAL and CLOCK_PROF
Am 16.10.2014 um 06:50 schrieb Philip Guenther guent...@gmail.com: On Wed, Oct 15, 2014 at 2:08 PM, Todd C. Miller todd.mil...@courtesan.com wrote: On Wed, 15 Oct 2014 21:53:47 +0200, Alexandre Ratchov wrote: On Wed, Oct 15, 2014 at 11:37:26AM -0600, Todd C. Miller wrote: Since this came up in another thread. Trivial implementations of CLOCK_VIRTUAL and CLOCK_PROF, modeled after what FreeBSD does. out of curiousity, what program needs these? Possibly none, but we currently define CLOCK_VIRTUAL but don't actually support it. IMO we should just delete CLOCK_VIRTUAL from sys/_time.h and clock_gettime(2). I agree.
LibreSSL 2.1.1 released.
We have released LibreSSL 2.1.1- which should be arriving in the LIbreSSL directory of an OpenBSD mirror near you very soon. This release includes: * Address POODLE attack by disabling SSLv3 by default * Fix Eliptical Curve cipher selection bug (https://github.com/libressl-portable/portable/issues/35) As well as continued ongoing fixes as we proactively change the codebase to reflect modern safe programming practices. The success of this is reflected in the fact that LibreSSL was not vulnerable to the two memory leak issues released on OpenSSL Tuesday - They were in fact initially fixed in LibreSSL. As noted before, we welcome feedback from the broader community. Enjoy, -Bob
Re: implement CLOCK_VIRTUAL and CLOCK_PROF
On Wed, 15 Oct 2014 21:50:44 -0700, Philip Guenther wrote: IMO we should just delete CLOCK_VIRTUAL from sys/_time.h and clock_gettime(2) Easy enough. - todd Index: sys/sys/_time.h === RCS file: /home/cvs/openbsd/src/sys/sys/_time.h,v retrieving revision 1.6 diff -u -r1.6 _time.h --- sys/sys/_time.h 6 Oct 2013 01:27:49 - 1.6 +++ sys/sys/_time.h 16 Oct 2014 12:47:02 - @@ -33,7 +33,6 @@ #define _SYS__TIME_H_ #define CLOCK_REALTIME 0 -#define CLOCK_VIRTUAL 1 #define CLOCK_PROCESS_CPUTIME_ID 2 #define CLOCK_MONOTONIC3 #define CLOCK_THREAD_CPUTIME_ID4 Index: lib/libc/sys/clock_gettime.2 === RCS file: /home/cvs/openbsd/src/lib/libc/sys/clock_gettime.2,v retrieving revision 1.24 diff -u -r1.24 clock_gettime.2 --- lib/libc/sys/clock_gettime.221 Jan 2014 03:15:45 - 1.24 +++ lib/libc/sys/clock_gettime.216 Oct 2014 12:43:33 - @@ -62,9 +62,6 @@ .Bl -tag -width CLOCK_MONOTONIC .It Dv CLOCK_REALTIME time that increments as a wall clock should -.It Dv CLOCK_VIRTUAL -time that increments only when -the CPU is running in user mode on behalf of the calling process .It Dv CLOCK_PROCESS_CPUTIME_ID time that increments when the CPU is running in user or kernel mode on behalf of the calling process
Re: implement CLOCK_VIRTUAL and CLOCK_PROF
On 2014/10/16 07:33, Todd C. Miller wrote: On Wed, 15 Oct 2014 21:50:44 -0700, Philip Guenther wrote: IMO we should just delete CLOCK_VIRTUAL from sys/_time.h and clock_gettime(2) Easy enough. ports should be pretty much OK with this, if there's any breakage it will be minor and can be handled affterwards.
Re: implement CLOCK_VIRTUAL and CLOCK_PROF
From: Todd C. Miller todd.mil...@courtesan.com Date: Thu, 16 Oct 2014 07:33:23 -0600 On Wed, 15 Oct 2014 21:50:44 -0700, Philip Guenther wrote: IMO we should just delete CLOCK_VIRTUAL from sys/_time.h and clock_gettime(2) Easy enough. ok kettenis@ Index: sys/sys/_time.h === RCS file: /home/cvs/openbsd/src/sys/sys/_time.h,v retrieving revision 1.6 diff -u -r1.6 _time.h --- sys/sys/_time.h 6 Oct 2013 01:27:49 - 1.6 +++ sys/sys/_time.h 16 Oct 2014 12:47:02 - @@ -33,7 +33,6 @@ #define _SYS__TIME_H_ #define CLOCK_REALTIME 0 -#define CLOCK_VIRTUAL1 #define CLOCK_PROCESS_CPUTIME_ID 2 #define CLOCK_MONOTONIC 3 #define CLOCK_THREAD_CPUTIME_ID 4 Index: lib/libc/sys/clock_gettime.2 === RCS file: /home/cvs/openbsd/src/lib/libc/sys/clock_gettime.2,v retrieving revision 1.24 diff -u -r1.24 clock_gettime.2 --- lib/libc/sys/clock_gettime.2 21 Jan 2014 03:15:45 - 1.24 +++ lib/libc/sys/clock_gettime.2 16 Oct 2014 12:43:33 - @@ -62,9 +62,6 @@ .Bl -tag -width CLOCK_MONOTONIC .It Dv CLOCK_REALTIME time that increments as a wall clock should -.It Dv CLOCK_VIRTUAL -time that increments only when -the CPU is running in user mode on behalf of the calling process .It Dv CLOCK_PROCESS_CPUTIME_ID time that increments when the CPU is running in user or kernel mode on behalf of the calling process
Conditional include in make(1)
Hi Marc, Is there a reason why conditional includes (sinclude/-include) aren't enabled in OpenBSD? I'm asking because the Xorg people now use it in one of the xserver Makefile. We could of course try to convince them to revert the change they made. But it is a somewhat useful feature. Thanks, Mark
Re: armv7: banana pi, Allwinner A20 board
I do believe that this is a pmap issue.
I just got hands on an Allwinner A20 and suffered the same issues:
pool_setlowat crashing randomly, same for ahci and so on.
I believe we are not syncing the PTEs correctly.
Here’s the snippet from PTE_SYNC(), but PTE_SYNC_RANGE() has
the same issue:
#define PTE_SYNC(pte) \
do {\
if (PMAP_NEEDS_PTE_SYNC) { \
paddr_t pa; \
cpu_drain_writebuf(); \
cpu_dcache_wb_range((vaddr_t)(pte), sizeof(pt_entry_t));\
if (cpu_sdcache_enabled()) {\
(void)pmap_extract(pmap_kernel(), (vaddr_t)(pte), pa); \
cpu_sdcache_wb_range((vaddr_t)(pte), (paddr_t)(pa), \
sizeof(pt_entry_t));\
}; \
cpu_drain_writebuf(); \
} \
} while (/*CONSTCOND*/0)
I believe that when we change things in the pagetables, we need to make
sure the tables are synced before we’re going to use them. In our case
we believe that we are using uncached pagetables, which means that
every write will directly hit the tables.
But that does not have an affect on the write buffer. The write buffer is still
there and has to be cleared manually. If it isn’t, and something accesses
an area which was just mapped, then we’re fucked.
Therefore I firmly believe that the cpu_drain_writebuf() call has to be made
regardless of PMAP_NEEDS_PTE_SYNC and that it has to be called before
that if-clause.
Doing that fixes my issues.
\Patrick
Am 09.10.2014 um 22:55 schrieb SASANO Takayoshi u...@mx5.nisiq.net:
Hello,
Here is the log of new image.
Booting with -c option, UKC still hangs up.
I hope the log helps debugging.
Regards,
--
SASANO Takayoshi u...@mx5.nisiq.net
U-Boot SPL 2014.04-10694-g2ae8b32-dirty (Oct 01 2014 - 17:40:04)
Board: Bananapi
DRAM: 1024 MiB
CPU: 96000Hz, AXI/AHB/APB: 3/2/2
spl: not an uImage at 1600
U-Boot 2014.04-10694-g2ae8b32-dirty (Oct 01 2014 - 17:40:04) Allwinner
Technology
CPU: Allwinner A20 (SUN7I)
Board: Bananapi
I2C: ready
DRAM: 1 GiB
MMC: SUNXI SD/MMC: 0
*** Warning - bad CRC, using default environment
In:serial
Out: serial
Err: serial
Net: dwmac.1c5
Hit any key to stop autoboot: 0
reading uEnv.txt
118 bytes read in 16 ms (6.8 KiB/s)
Loaded environment from uEnv.txt
Running uenvcmd ...
reading bsd.umg
7386560 bytes read in 364 ms (19.4 MiB/s)
## Booting kernel from Legacy Image at 6000 ...
Image Name: boot
Image Type: ARM Linux Kernel Image (uncompressed)
Data Size:7386496 Bytes = 7 MiB
Load Address: 4080
Entry Point: 4080
Verifying Checksum ... OK
Loading Kernel Image ... OK
Starting kernel ...
OpenBSD/sunxi booting ...
arg0 0x0 arg1 0x10bb arg2 0x4100
atag core flags 0 pagesize 0 rootdev 0
atag cmdline [sd0i:/bsd -c]
atag mem start 0x4000 size 0x4000
bootfile: sd0i:/bsd
bootargs: -c
memory size derived from u-boot
bootconf.mem[0].address = 4000 pages 262144/0x4000
Allocating page tables
freestart = 0x40f0c000, free_pages = 258292 (0x0003f0f4)
IRQ stack: p0x40f3a000 v0xc0f3a000
ABT stack: p0x40f3b000 v0xc0f3b000
UND stack: p0x40f3c000 v0xc0f3c000
SVC stack: p0x40f3d000 v0xc0f3d000
Creating L1 page table at 0x40f0c000
Mapping kernel
Constructing L2 page tables
undefined page pmap [ using 170728 bytes of bsd ELF symbol table ]
Copyright (c) 1982, 1986, 1989, 1991, 1993
The Regents of the University of California. All rights reserved.
Copyright (c) 1995-2014 OpenBSD. All rights reserved. http://www.OpenBSD.org
kernel does not support -c; continuing..
OpenBSD 5.6-current (RAMDISK-SUNXI) #1: Thu Oct 9 21:03:32 AEDT 2014
r...@armv7.jsg.id.au:/usr/src/sys/arch/armv7/compile/RAMDISK-SUNXI
real mem = 1073741824 (1024MB)
avail mem = 1036165120 (988MB)
warning: no entropy supplied by boot loader
mainbus0 at root
cortex0 at mainbus0
ampintc0 at cortex0 nirq 160
cpu0 at mainbus0: ARM Cortex A7 rev 4 (ARMv7 core)
cpu0: DC enabled IC enabled WB disabled EABT branch prediction enabled
cpu0: 32KB(32b/l,2way) I-cache, 32KB(64b/l,4way) wr-back D-cache
sunxi0 at mainbus0: A20
sxipio0 at sunxi0
sxiccmu0 at sunxi0
sxitimer0 at sunxi0: ticktimer 100hz @ 32KHz
sxitimer1 at sunxi0: stattimer 128hz @ 32KHz
sxitimer2 at sunxi0: cntrtimer @ 32KHz
sxidog0 at sunxi0
sxirtc0 at sunxi0
sxiuart0 at sunxi0: console
sxiuart1 at sunxi0
sxiuart2 at sunxi0
sxiuart3 at sunxi0
sxiuart4 at sunxi0
sxiuart5 at sunxi0
sxiuart6 at
