Date: Fri, 15 Jun 2018 19:02:53 +0000 (UTC) From: Conrad Meyer <cem@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r335227 - head/sys/sys Message-ID: <201806151902.w5FJ2r1c095857@repo.freebsd.org>
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Author: cem Date: Fri Jun 15 19:02:53 2018 New Revision: 335227 URL: https://svnweb.freebsd.org/changeset/base/335227 Log: Retain offset compatibility with pre-12.0 dumps As a follow-up to r324965, which adds support for compressed kernel dumps, readjust dump header members slightly to mostly preserve ABI with earlier (11.x and older) dumps. Reviewed by: markj X-MFC-With: r324965 Sponsored by: Dell EMC Isilon Differential Revision: https://reviews.freebsd.org/D15829 Modified: head/sys/sys/kerneldump.h Modified: head/sys/sys/kerneldump.h ============================================================================== --- head/sys/sys/kerneldump.h Fri Jun 15 18:55:02 2018 (r335226) +++ head/sys/sys/kerneldump.h Fri Jun 15 19:02:53 2018 (r335227) @@ -81,8 +81,8 @@ struct kerneldumpheader { #define KERNELDUMPMAGIC_CLEARED "Cleared Kernel Dump" char architecture[12]; uint32_t version; -#define KERNELDUMPVERSION 3 -#define KERNELDUMP_TEXT_VERSION 3 +#define KERNELDUMPVERSION 4 +#define KERNELDUMP_TEXT_VERSION 4 uint32_t architectureversion; #define KERNELDUMP_AARCH64_VERSION 1 #define KERNELDUMP_AMD64_VERSION 2 @@ -93,14 +93,15 @@ struct kerneldumpheader { #define KERNELDUMP_RISCV_VERSION 1 #define KERNELDUMP_SPARC64_VERSION 1 uint64_t dumplength; /* excl headers */ - uint64_t dumpextent; uint64_t dumptime; uint32_t dumpkeysize; uint32_t blocksize; - uint8_t compression; char hostname[64]; char versionstring[192]; - char panicstring[179]; + char panicstring[175]; + uint8_t compression; + uint64_t dumpextent; + char unused[4]; uint32_t parity; };
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