Per the thread at http://lists.freebsd.org/pipermail/svn-src-head/2013-July/049735.html, I encountered the same issue when building a raspberry pi with the script at http://kernelnomicon.org/?p=275. After applying the patch I am able to fully boot the latest FreeBSD on my Raspberry Pi. I do not see this patch in the latest tree nor do I see a bug report about the issue so I am filing this to bring attention to it and get the bug corrected, hopefully in the near future. How-To-Repeat: Download the latest svn base head and compile the kernel for arm based on the script at http://kernelnomicon.org/?p=275. Attempt to boot the image on a raspberry pi after writing it to a sdcard.
Author: kientzle Date: Thu Jul 25 03:48:37 2013 New Revision: 253636 URL: http://svnweb.freebsd.org/changeset/base/253636 Log: Clear entire map structure including locks so that the locks don't accidentally appear to have been already initialized. In particular, this fixes a consistent kernel crash on armv6 with: panic: lock "vm map (user)" 0xc09cc050 already initialized that appeared with r251709. PR: arm/180820 Modified: head/sys/vm/vm_map.c Modified: head/sys/vm/vm_map.c ============================================================================== --- head/sys/vm/vm_map.c Thu Jul 25 03:44:12 2013 (r253635) +++ head/sys/vm/vm_map.c Thu Jul 25 03:48:37 2013 (r253636) @@ -239,8 +239,7 @@ vm_map_zinit(void *mem, int size, int fl vm_map_t map; map = (vm_map_t)mem; - map->nentries = 0; - map->size = 0; + memset(map, 0, sizeof(*map)); mtx_init(&map->system_mtx, "vm map (system)", NULL, MTX_DEF | MTX_DUPOK); sx_init(&map->lock, "vm map (user)"); return (0); _______________________________________________ svn-src-all@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/svn-src-all To unsubscribe, send any mail to "svn-src-all-unsubscribe@freebsd.org"
State Changed From-To: open->closed Committed patch.