Author: jhibbits Date: Fri Aug 26 03:36:37 2016 New Revision: 304829 URL: https://svnweb.freebsd.org/changeset/base/304829
Log: Prevent BSS from being cleared twice on BookE Summary: First time BSS is cleared in booke_init(), Second time it's cleared in powerpc_init(). Any variable initialized between two those guys gets wiped out what is wrong. In particular it wipes tlb1_entries initialized by tlb1_init(), which was fine when tlb1_init() was called a second time, but this was removed in r304656. Submitted by: Ivan Krivonos <int0dster_gmail.com> Differential Revision: https://reviews.freebsd.org/D7638 Modified: head/sys/powerpc/powerpc/machdep.c Modified: head/sys/powerpc/powerpc/machdep.c ============================================================================== --- head/sys/powerpc/powerpc/machdep.c Fri Aug 26 02:46:47 2016 (r304828) +++ head/sys/powerpc/powerpc/machdep.c Fri Aug 26 03:36:37 2016 (r304829) @@ -284,8 +284,14 @@ powerpc_init(vm_offset_t fdt, vm_offset_ #endif } } else { +#if !defined(BOOKE) + /* + * On BOOKE the BSS is already cleared and some variables + * initialized. Do not wipe them out. + */ bzero(__sbss_start, __sbss_end - __sbss_start); bzero(__bss_start, _end - __bss_start); +#endif init_static_kenv(NULL, 0); } /* Store boot environment state */ _______________________________________________ svn-src-all@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-all To unsubscribe, send any mail to "svn-src-all-unsubscr...@freebsd.org"
