Re: [PATCH v2 0/3] Handle delay slot for extable lookup

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在 2024/2/2 12:30, Jiaxun Yang 写道:
Hi all,

This series fixed extable handling for architecture delay slot (MIPS).

Please see previous discussions at [1].

There are some other places in kernel not handling delay slots properly,
such as uprobe and kgdb, I'll sort them later.

A gentle ping :-)

This series fixes a regression, perhaps it should go through fixes tree.

Thanks
- Jiaxun


Thanks!

[1]: https://lore.kernel.org/lkml/75e9fd7b08562ad9b456a5bdaacb7cc220311cc9.camel@xxxxxxxxxxx

To: Oleg Nesterov <oleg@xxxxxxxxxx>

To: Thomas Bogendoerfer <tsbogend@xxxxxxxxxxxxxxxx>

To: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
To: Ben Hutchings <ben@xxxxxxxxxxxxxxx>

Cc:  <linux-arch@xxxxxxxxxxxxxxx>
Cc:  <linux-kernel@xxxxxxxxxxxxxxx>

Cc:  <linux-mips@xxxxxxxxxxxxxxx>

Cc:  <linux-mm@xxxxxxxxx>

Signed-off-by: Jiaxun Yang <jiaxun.yang@xxxxxxxxxxx>
---
Changes in v2:
- Reduce diffstat by implemente fallback macro in linux/ptrace.h (linus)
- Link to v1: https://lore.kernel.org/r/20240201-exception_ip-v1-0-aa26ab3ee0b5@xxxxxxxxxxx

---
Jiaxun Yang (3):
       ptrace: Introduce exception_ip arch hook
       MIPS: Clear Cause.BD in instruction_pointer_set
       mm/memory: Use exception ip to search exception tables

  arch/mips/include/asm/ptrace.h | 3 +++
  arch/mips/kernel/ptrace.c      | 7 +++++++
  include/linux/ptrace.h         | 4 ++++
  mm/memory.c                    | 4 ++--
  4 files changed, 16 insertions(+), 2 deletions(-)
---
base-commit: 06f658aadff0e483ee4f807b0b46c9e5cba62bfa
change-id: 20240131-exception_ip-194e4ad0e6ca

Best regards,

--
---
Jiaxun Yang





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