Date: Fri, 4 Jan 2019 17:25:48 +0000 (UTC) From: Konstantin Belousov <kib@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r342767 - in head/sys: amd64/amd64 i386/i386 Message-ID: <201901041725.x04HPmIt037652@repo.freebsd.org>
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Author: kib Date: Fri Jan 4 17:25:47 2019 New Revision: 342767 URL: https://svnweb.freebsd.org/changeset/base/342767 Log: x86: Report per-cpu IPI TLB shootdown generation in ddb 'show pcpu' output. It is useful for inspecting tlb shootdown hangs. The smp_tlb_generation value is available using regular ddb data inspection commands. Sponsored by: The FreeBSD Foundation MFC after: 3 days Modified: head/sys/amd64/amd64/db_interface.c head/sys/i386/i386/db_interface.c Modified: head/sys/amd64/amd64/db_interface.c ============================================================================== --- head/sys/amd64/amd64/db_interface.c Fri Jan 4 17:14:50 2019 (r342766) +++ head/sys/amd64/amd64/db_interface.c Fri Jan 4 17:25:47 2019 (r342767) @@ -104,4 +104,5 @@ db_show_mdpcpu(struct pcpu *pc) db_printf("gs32p = %p\n", pc->pc_gs32p); db_printf("ldt = %p\n", pc->pc_ldt); db_printf("tss = %p\n", pc->pc_tss); + db_printf("tlb gen = %u\n", pc->pc_smp_tlb_done); } Modified: head/sys/i386/i386/db_interface.c ============================================================================== --- head/sys/i386/i386/db_interface.c Fri Jan 4 17:14:50 2019 (r342766) +++ head/sys/i386/i386/db_interface.c Fri Jan 4 17:25:47 2019 (r342767) @@ -118,4 +118,5 @@ db_show_mdpcpu(struct pcpu *pc) db_printf("trampstk = 0x%x\n", pc->pc_trampstk); db_printf("kesp0 = 0x%x\n", pc->pc_kesp0); db_printf("common_tssp = 0x%x\n", (u_int)pc->pc_common_tssp); + db_printf("tlb gen = %u\n", pc->pc_smp_tlb_done); }
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