On Mon, Sep 21, 2020 at 2:54 PM Sasha Levin sashal@kernel.org wrote:
Hi
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This commit has been processed because it contains a "Fixes:" tag fixing commit: 369842658a36 ("ARM: 5677/1: ARM support for TIF_RESTORE_SIGMASK/pselect6/ppoll/epoll_pwait").
The bot has tested the following trees: v5.8.10, v5.4.66, v4.19.146, v4.14.198, v4.9.236, v4.4.236.
v5.8.10: Build OK! v5.4.66: Build OK! v4.19.146: Build OK! v4.14.198: Build OK! v4.9.236: Failed to apply! Possible dependencies: 00bf25d693e7 ("y2038: use time32 syscall names on 32-bit") 17435e5f8cf3 ("time: Introduce CONFIG_COMPAT_32BIT_TIME") 338035edc9b9 ("arm: Wire up restartable sequences system call") 4e2648db9c5f ("ARM: remove indirection of asm/mach-types.h") 73aeb2cbcdc9 ("ARM: 8787/1: wire up io_pgetevents syscall") 78594b95998f ("ARM: add migrate_pages() system call") 96a8fae0fe09 ("ARM: convert to generated system call tables") a1016e94cce9 ("ARM: wire up statx syscall") c281634c8652 ("ARM: compat: remove KERNEL_DS usage in sys_oabi_epoll_ctl()") d4703ddafd1e ("time: Introduce CONFIG_64BIT_TIME in architectures")
v4.4.236: Failed to apply! Possible dependencies: 00bf25d693e7 ("y2038: use time32 syscall names on 32-bit") 03590cb56d5d ("ARM: wire up copy_file_range() syscall") 0d4a619b64ba ("dma-mapping: make the generic coherent dma mmap implementation optional") 17435e5f8cf3 ("time: Introduce CONFIG_COMPAT_32BIT_TIME") 4e2648db9c5f ("ARM: remove indirection of asm/mach-types.h") 96a8fae0fe09 ("ARM: convert to generated system call tables") c281634c8652 ("ARM: compat: remove KERNEL_DS usage in sys_oabi_epoll_ctl()") d4703ddafd1e ("time: Introduce CONFIG_64BIT_TIME in architectures") f2335a2a0a59 ("ARM: wire up preadv2 and pwritev2 syscalls")
NOTE: The patch will not be queued to stable trees until it is upstream.
How should we proceed with this patch?
I wouldn't worry too much about the failed backport in this case, as I don't think there are any actual users of this code on older stable kernels, and even if there are they are unlikely to start using epoll_pwait.
Arnd