| Message ID | 20230516071830.8190-1-zegao@tencent.com (mailing list archive) |
|---|---|
| Headers | show |
| Series | Make fprobe + rethook immune to recursion | expand |
On Tue, May 16, 2023 at 03:18:26PM +0800, Ze Gao wrote: > Hi all, > > This is the 2nd version of patch series to fix the ftrace rethook recursion problem. > > v1: https://lore.kernel.org/linux-trace-kernel/cover.1684120990.git.zegao@tencent.com/T/ +++#md4c0bae6a6cae28dadf2a2c6105ff140b35fddea > > As Steven suggested, this version removes unnecessary notrace annotations from fprobe > and rethook functions from v1 [PATCH 2,3,4/4] and replaces with makefile changes to filter > out compiler flags which ftrace depends upon for rethook related objects. > > Ze Gao (4): > rethook: use preempt_{disable, enable}_notrace in > rethook_trampoline_handler > fprobe: make fprobe_kprobe_handler recursion free > fprobe: add recursion detection in fprobe_exit_handler > rehook, fprobe: do not trace rethook related functions hi, what tree is this based on? I have troubles to apply that thanks, jirka > > arch/riscv/kernel/probes/Makefile | 2 + > arch/s390/kernel/Makefile | 1 + > arch/x86/kernel/Makefile | 1 + > kernel/trace/fprobe.c | 72 ++++++++++++++++++++++++------- > kernel/trace/rethook.c | 4 +- > 5 files changed, 63 insertions(+), 17 deletions(-) > > -- > 2.40.1 >
Hi all, This is the 2nd version of patch series to fix the ftrace rethook recursion problem. v1: https://lore.kernel.org/linux-trace-kernel/cover.1684120990.git.zegao@tencent.com/T/ +++#md4c0bae6a6cae28dadf2a2c6105ff140b35fddea As Steven suggested, this version removes unnecessary notrace annotations from fprobe and rethook functions from v1 [PATCH 2,3,4/4] and replaces with makefile changes to filter out compiler flags which ftrace depends upon for rethook related objects. Ze Gao (4): rethook: use preempt_{disable, enable}_notrace in rethook_trampoline_handler fprobe: make fprobe_kprobe_handler recursion free fprobe: add recursion detection in fprobe_exit_handler rehook, fprobe: do not trace rethook related functions arch/riscv/kernel/probes/Makefile | 2 + arch/s390/kernel/Makefile | 1 + arch/x86/kernel/Makefile | 1 + kernel/trace/fprobe.c | 72 ++++++++++++++++++++++++------- kernel/trace/rethook.c | 4 +- 5 files changed, 63 insertions(+), 17 deletions(-)