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Paul Gortmaker
61fb0a5dc0
Recent systemd started using ascii args to "hidepid=" mount options for proc fs - unconditionally -- even though kernels older than v5.8 emit an error message on each attempt: root@qemux86-64:~# cat /proc/version Linux version 5.4.87-yocto-standard (oe-user@oe-host) (gcc version 10.2.0 (GCC)) #1 SMP PREEMPT Fri Jan 8 01:47:13 UTC 2021 root@qemux86-64:~# dmesg|grep proc: [ 29.487995] proc: Bad value for 'hidepid' [ 43.170571] proc: Bad value for 'hidepid' [ 44.175615] proc: Bad value for 'hidepid' [ 46.213300] proc: Bad value for 'hidepid' root@qemux86-64:~# Simply ignoring them as the systemd maintainer unconditionally says is the resolution is clearly not acceptable, given the above. Add a kernel version check to avoid calling mount with invalid args. Further details are within the enclosed systemd commit. Cc: Luca Boccassi <luca.boccassi@microsoft.com> Cc: Richard Purdie <richard.purdie@linuxfoundation.org> (From OE-Core rev: 76107fd7372559aa4cd22a89d5517a4dfce9314d) Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
QEMU Emulation Targets ====================== To simplify development, the build system supports building images to work with the QEMU emulator in system emulation mode. Several architectures are currently supported in 32 and 64 bit variants: * ARM (qemuarm + qemuarm64) * x86 (qemux86 + qemux86-64) * PowerPC (qemuppc only) * MIPS (qemumips + qemumips64) Use of the QEMU images is covered in the Yocto Project Reference Manual. The appropriate MACHINE variable value corresponding to the target is given in brackets.