Re: [Qemu-devel] [PATCH v2] linux-user: emulate msgsnd(), msgrcv() and semtimedop()

[Cornelia Huck]

On Wed, 29 May 2019 10:48:04 +0200
Laurent Vivier <address@hidden> wrote:

> When we have updated kernel headers to 5.2-rc1 we have introduced
> new syscall numbers that can be not supported by older kernels
> and fail with ENOSYS while the guest emulation succeeded before
> because the syscalls were emulated with ipc().
> 
> This patch fixes the problem by using ipc() if the new syscall
> returns ENOSYS.
> 
> Fixes: 86e636951ddc ("linux-user: fix __NR_semtimedop undeclared error")
> Signed-off-by: Laurent Vivier <address@hidden>
> ---
> 
> Notes:
>     v2: replace ENOSYS by TARGET_ENOSYS
> 
>  linux-user/syscall.c      | 61 +++++++++++++++++++--------------------
>  linux-user/syscall_defs.h |  1 +
>  2 files changed, 31 insertions(+), 31 deletions(-)

I hope this headers update is now done with bringing joy :)

Not a linux-user expert, but it does look reasonable.

Reviewed-by: Cornelia Huck <address@hidden>