Messages in this thread | | | From | Andy Lutomirski <> | Subject | [PATCH v3 0/3] Handle IST interrupts from userspace on the normal stack | Date | Tue, 18 Nov 2014 15:15:16 -0800 |
| |
We currently run IST interrupt handlers on the IST stack. Changing it may simplify a few things. See patch 2 for details.
Patch 1 is a fix for a not-quite-bug in uprobes that Oleg noticed that would be exposed by patch 2.
NB: Tony has seen odd behavior when stress-testing injected machine checks with this series applied. I suspect that it's a bug in something else, possibly his BIOS. Bugs in this series shouldn't be ruled out, though.
Andy Lutomirski (3): uprobes, x86: Fix _TIF_UPROBE vs _TIF_NOTIFY_RESUME x86, entry: Switch stacks on a paranoid entry from userspace sched, x86: Check that we're on the right stack in schedule and __might_sleep
Documentation/x86/entry_64.txt | 18 ++++--- Documentation/x86/x86_64/kernel-stacks | 8 ++-- arch/x86/Kconfig | 1 + arch/x86/include/asm/thread_info.h | 19 +++++++- arch/x86/kernel/entry_64.S | 86 ++++++++++++++++++---------------- arch/x86/kernel/irq_32.c | 13 ++--- arch/x86/kernel/traps.c | 23 ++------- include/linux/thread_info.h | 7 +++ kernel/Kconfig.locks | 3 ++ kernel/events/uprobes.c | 1 - kernel/sched/core.c | 14 ++++-- 11 files changed, 109 insertions(+), 84 deletions(-)
-- 1.9.3
| |