From a646269c2ada7691d8a7f7455ba4528c7cca3483 Mon Sep 17 00:00:00 2001 From: Martin Jansa Date: Fri, 22 Jan 2010 14:41:00 +0000 Subject: sanity.bbclass: handle lack of permission to read /proc/sys/vm/mmap_min_addr * With 2.6.33-rc2-00252-ge9e5521 on my host I noticed that "cat /proc/sys/vm/mmap_min_addr" returns now "cat: /proc/sys/vm/mmap_min_addr: Operation not permitted" Its probably becuse of http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=0e1a6ef2dea88101b056b6d9984f3325c5efced3 But I'm not sure if checking CAP_SYS_RAWIO even for reading this value is intentional or just bug which should be fixed in kernel. This patch makes bitbake ignore reading error. Possible QEmu failure is not handled yet. Acked-by: Marcin Juszkiewicz Acked-by: Philip Balister Acked-by: Koen Kooi --- classes/sanity.bbclass | 13 ++++++++----- 1 file changed, 8 insertions(+), 5 deletions(-) diff --git a/classes/sanity.bbclass b/classes/sanity.bbclass index 29624c3f78..b6f054bb14 100644 --- a/classes/sanity.bbclass +++ b/classes/sanity.bbclass @@ -98,11 +98,14 @@ def check_sanity(e): if not check_app_exists("qemu-arm", e.data): messages = messages + "qemu-native was in ASSUME_PROVIDED but the QEMU binaries (qemu-arm) can't be found in PATH" - if os.path.exists("/proc/sys/vm/mmap_min_addr"): - f = file("/proc/sys/vm/mmap_min_addr", "r") - if (f.read().strip() != "0"): - messages = messages + "/proc/sys/vm/mmap_min_addr is not 0. This will cause problems with qemu so please fix the value (as root).\n\nTo fix this in later reboots, set vm.mmap_min_addr = 0 in /etc/sysctl.conf.\n" - f.close() + try: + if os.path.exists("/proc/sys/vm/mmap_min_addr"): + f = file("/proc/sys/vm/mmap_min_addr", "r") + if (f.read().strip() != "0"): + messages = messages + "/proc/sys/vm/mmap_min_addr is not 0. This will cause problems with qemu so please fix the value (as root).\n\nTo fix this in later reboots, set vm.mmap_min_addr = 0 in /etc/sysctl.conf.\n" + f.close() + except: + pass for util in required_utilities.split(): if not check_app_exists( util, e.data ): -- cgit 1.2.3-korg