As Vincent noticed, the y2038 conversion of semtimedop in linux-5.1 broke when commit 00bf25d693e7 ("y2038: use time32 syscall names on 32-bit") changed all system calls on all architectures that take a 32-bit time_t to point to the _time32 implementation, but left out semtimedop in the asm-generic header.
This affects all 32-bit architectures using asm-generic/unistd.h: h8300, unicore32, openrisc, nios2, hexagon, c6x, arc, nds32 and csky.
The notable exception is riscv32, which has dropped support for the time32 system calls entirely.
Reported-by: Vincent Chen deanbo422@gmail.com Cc: stable@vger.kernel.org Cc: Vincent Chen deanbo422@gmail.com Cc: Greentime Hu green.hu@gmail.com Cc: Yoshinori Sato ysato@users.sourceforge.jp Cc: Guan Xuetao gxt@pku.edu.cn Cc: Stafford Horne shorne@gmail.com Cc: Jonas Bonn jonas@southpole.se Cc: Stefan Kristiansson stefan.kristiansson@saunalahti.fi Cc: Ley Foon Tan lftan@altera.com Cc: Richard Kuo rkuo@codeaurora.org Cc: Mark Salter msalter@redhat.com Cc: Aurelien Jacquiot jacquiot.aurelien@gmail.com Cc: Guo Ren guoren@kernel.org Fixes: 00bf25d693e7 ("y2038: use time32 syscall names on 32-bit") Signed-off-by: Arnd Bergmann arnd@arndb.de --- Hi Vincent,
Sorry for the delay since your report. Does this address your problem?
Anyone else, please note that this patch is required since 5.1 to make sysvipc work on the listed architectures. --- include/uapi/asm-generic/unistd.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/uapi/asm-generic/unistd.h b/include/uapi/asm-generic/unistd.h index 1be0e798e362..1fc8faa6e973 100644 --- a/include/uapi/asm-generic/unistd.h +++ b/include/uapi/asm-generic/unistd.h @@ -569,7 +569,7 @@ __SYSCALL(__NR_semget, sys_semget) __SC_COMP(__NR_semctl, sys_semctl, compat_sys_semctl) #if defined(__ARCH_WANT_TIME32_SYSCALLS) || __BITS_PER_LONG != 32 #define __NR_semtimedop 192 -__SC_COMP(__NR_semtimedop, sys_semtimedop, sys_semtimedop_time32) +__SC_3264(__NR_semtimedop, sys_semtimedop_time32, sys_semtimedop) #endif #define __NR_semop 193 __SYSCALL(__NR_semop, sys_semop)