Date: Thu, 21 Nov 2019 13:59:01 +0000 (UTC) From: Andrew Turner <andrew@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r354952 - head/sys/kern Message-ID: <201911211359.xALDx1Bx041714@repo.freebsd.org>
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Author: andrew Date: Thu Nov 21 13:59:01 2019 New Revision: 354952 URL: https://svnweb.freebsd.org/changeset/base/354952 Log: Disable KCSAN within a panic. The kernel is single threaded at this point and the panic is more important. Sponsored by: DARPA, AFRL Modified: head/sys/kern/subr_csan.c Modified: head/sys/kern/subr_csan.c ============================================================================== --- head/sys/kern/subr_csan.c Thu Nov 21 13:57:30 2019 (r354951) +++ head/sys/kern/subr_csan.c Thu Nov 21 13:59:01 2019 (r354952) @@ -153,6 +153,8 @@ kcsan_access(uintptr_t addr, size_t size, bool write, return; if (__predict_false(kcsan_md_unsupported((vm_offset_t)addr))) return; + if (__predict_false(panicstr != NULL)) + return; new.addr = addr; new.size = size;
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