dc6fbf6545
has proven to have a good effect when entering KDB by using a NMI, but it completely violates all the good rules about interrupts disabled while holding a spinlock in other occasions. This can be the cause of deadlocks on events where a normal IPI_STOP is expected. * Adds an new IPI called IPI_STOP_HARD on all the supported architectures. This IPI is responsible for sending a stop message among CPUs using a privileged channel when disponible. In other cases it just does match a normal IPI_STOP. Right now the IPI_STOP_HARD functionality uses a NMI on ia32 and amd64 architectures, while on the other has a normal IPI_STOP effect. It is responsibility of maintainers to eventually implement an hard stop when necessary and possible. * Use the new IPI facility in order to implement a new userend SMP kernel function called stop_cpus_hard(). That is specular to stop_cpu() but it does use the privileged channel for the stopping facility. * Let KDB use the newly introduced function stop_cpus_hard() and leave stop_cpus() for all the other cases * Disable interrupts on CPU0 when starting the process of APs suspension. * Style cleanup and comments adding This patch should fix the reboot/shutdown deadlocks many users are constantly reporting on mailing lists. Please don't forget to update your config file with the STOP_NMI option removal Reviewed by: jhb Tested by: pho, bz, rink Approved by: re (kib)
119 lines
2.7 KiB
Plaintext
119 lines
2.7 KiB
Plaintext
# $FreeBSD$
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# Options specific to the i386 platform kernels
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AUTO_EOI_1 opt_auto_eoi.h
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AUTO_EOI_2 opt_auto_eoi.h
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BROKEN_KEYBOARD_RESET opt_reset.h
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COUNT_XINVLTLB_HITS opt_smp.h
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COUNT_IPIS opt_smp.h
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DISABLE_PG_G opt_pmap.h
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DISABLE_PSE opt_pmap.h
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I586_PMC_GUPROF opt_i586_guprof.h
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MAXMEM
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MPTABLE_FORCE_HTT
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MP_WATCHDOG
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PERFMON
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PMAP_SHPGPERPROC opt_pmap.h
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POWERFAIL_NMI opt_trap.h
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# Options for emulators. These should only be used at config time, so
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# they are handled like options for static filesystems
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# (see src/sys/conf/options), except for broken debugging options.
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COMPAT_AOUT opt_dontuse.h
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IBCS2 opt_dontuse.h
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COMPAT_LINUX opt_dontuse.h
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COMPAT_SVR4 opt_dontuse.h
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DEBUG_SVR4 opt_svr4.h
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LINPROCFS opt_dontuse.h
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LINSYSFS opt_dontuse.h
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NDISAPI opt_dontuse.h
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# Change KVM size. Changes things all over the kernel.
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KVA_PAGES opt_global.h
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# Physical address extensions and support for >4G ram. As above.
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PAE opt_global.h
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TIMER_FREQ opt_clock.h
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CPU_ATHLON_SSE_HACK opt_cpu.h
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CPU_BLUELIGHTNING_3X opt_cpu.h
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CPU_BLUELIGHTNING_FPU_OP_CACHE opt_cpu.h
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CPU_BTB_EN opt_cpu.h
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CPU_CYRIX_NO_LOCK opt_cpu.h
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CPU_DIRECT_MAPPED_CACHE opt_cpu.h
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CPU_DISABLE_5X86_LSSER opt_cpu.h
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CPU_DISABLE_CMPXCHG opt_global.h # XXX global, unlike other CPU_*
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CPU_DISABLE_SSE opt_cpu.h
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CPU_ELAN opt_cpu.h
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CPU_ELAN_PPS opt_cpu.h
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CPU_ELAN_XTAL opt_cpu.h
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CPU_ENABLE_LONGRUN opt_cpu.h
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CPU_FASTER_5X86_FPU opt_cpu.h
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CPU_GEODE opt_cpu.h
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CPU_I486_ON_386 opt_cpu.h
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CPU_IORT opt_cpu.h
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CPU_L2_LATENCY opt_cpu.h
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CPU_LOOP_EN opt_cpu.h
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CPU_PPRO2CELERON opt_cpu.h
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CPU_RSTK_EN opt_cpu.h
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CPU_SOEKRIS opt_cpu.h
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CPU_SUSP_HLT opt_cpu.h
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CPU_UPGRADE_HW_CACHE opt_cpu.h
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CPU_WT_ALLOC opt_cpu.h
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CYRIX_CACHE_REALLY_WORKS opt_cpu.h
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CYRIX_CACHE_WORKS opt_cpu.h
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NO_F00F_HACK opt_cpu.h
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NO_MEMORY_HOLE opt_cpu.h
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# The CPU type affects the endian conversion functions all over the kernel.
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I486_CPU opt_global.h
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I586_CPU opt_global.h
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I686_CPU opt_global.h
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# options for serial support
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COM_ESP opt_sio.h
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COM_MULTIPORT opt_sio.h
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CONSPEED opt_sio.h
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GDBSPEED opt_sio.h
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COM_NO_ACPI opt_sio.h
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VGA_ALT_SEQACCESS opt_vga.h
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VGA_DEBUG opt_vga.h
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VGA_NO_FONT_LOADING opt_vga.h
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VGA_NO_MODE_CHANGE opt_vga.h
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VGA_SLOW_IOACCESS opt_vga.h
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VGA_WIDTH90 opt_vga.h
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VESA
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VESA_DEBUG opt_vesa.h
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# AGP debugging support
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AGP_DEBUG opt_agp.h
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PSM_DEBUG opt_psm.h
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PSM_HOOKRESUME opt_psm.h
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PSM_RESETAFTERSUSPEND opt_psm.h
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ATKBD_DFLT_KEYMAP opt_atkbd.h
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# Video spigot
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SPIGOT_UNSECURE opt_spigot.h
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# Enables NETGRAPH support for Cronyx adapters
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NETGRAPH_CRONYX opt_ng_cronyx.h
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# Device options
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DEV_APIC opt_apic.h
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DEV_NPX opt_npx.h
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ASR_COMPAT opt_asr.h
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# Debugging
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NPX_DEBUG opt_npx.h
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# BPF just-in-time compiler
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BPF_JITTER opt_bpf.h
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NATIVE opt_global.h
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XEN opt_global.h
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