On Sun, Jun 23, 2013 at 09:57:06AM +0300, Konstantin Belousov wrote: > > I don't really see a lot of wasted memory in the zones. There is > > certainly some. Can you give me sysctl vm from both a working and > > non-working kernel after the build is done or fails? > > Try this: > http://people.freebsd.org/~kib/misc/arm_bcache.1.patch > > Please _do_ notify me whether it compiled and helped with your problem. Btw, there is a problem while allocating 2GB RAM on armv7 boards while unmapped_buf_allowed == 1 (default): ----- ## Starting application at 0x40F00000 ... KDB: debugger backends: ddb KDB: current backend: ddb Copyright (c) 1992-2013 The FreeBSD Project. Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994 The Regents of the University of California. All rights reserved. FreeBSD is a registered trademark of The FreeBSD Foundation. FreeBSD 10.0-CURRENT #5 r252090M: Sun Jun 23 12:18:31 MSK 2013 root_at_intel.bsdpad.com:/usr/obj/arm.armv6/usr/home/br/dev/head/sys/ARNDALE arm FreeBSD clang version 3.3 (tags/RELEASE_33/final 183502) 20130610 WARNING: DIAGNOSTIC option enabled, expect reduced performance. CPU: Cortex A15 rev 4 (Cortex-A core) Supported features: ARM_ISA THUMB2 THUMBEE ARMv4 Security_Ext WB disabled EABT branch prediction enabled LoUU:2 LoC:2 LoUIS:2 Cache level 1: 32KB/64B 2-way data cache WB Read-Alloc Write-Alloc 32KB/64B 2-way instruction cache Read-Alloc Cache level 2: 1024KB/64B 16-way unified cache WB Read-Alloc Write-Alloc real memory = 2147483648 (2048 MB) panic: kmem_suballoc: bad status return of 3 ----- arm_bcache.1.patch resolves the issue above, but forced another one: ----- Trying to mount root from ufs:/dev/da0 []... WARNING: / was not properly dismounted warning: no time-of-day clock registered, system time will not be set accurately panic: __rw_wlock_hard: recursing but non-recursive rw pmap pv global _at_ /usr/home/br/dev/head/sys/arm/arm/pmap-v6.c:1289 ----- and there are no problems at all if unmapped_buf_allowed == 0 -RuslanReceived on Sun Jun 23 2013 - 06:53:20 UTC
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