8291 2015-09-12 09:42:18 +0000 systemd fails to start when compiled with GCC 5.2 2015-10-13 11:20:09 +0000 1 1 7 Build System, Metadata & Runtime OE-Core core 1.9 All arm VERIFIED FIXED Medium+ critical 1.9 1 net147 net147 andrei bogdanx.a.voiculescu kergoth meta.mr.watcher meta.watcher ntl raj.khem richard.purdie ross.burton bogdanx.a.voiculescu --- --- No (bug/feature does not impact docs) oldest_to_newest 53991 0 net147 2015-09-12 09:42:18 +0000 systemd image fails to start on Raspberry Pi 2 if using GCC 5.2. Repository revisions bitbake: 135dff67216759286f584e501583584a9cb09f27 openembedded-core: 56c5fa106eeccda2ca92dbeb73ff01ba40992e7d It will try to start the following services, timeout after 90 seconds and keep trying to again to start the services: * Journal Service * udev Kernel Device Manager Workarounds: * Change -O2 to -O1 in optimization flags for systemd recipe: FULL_OPTIMIZATION_remove = "-O2" FULL_OPTIMIZATION =+ "-O1" * Set GCCVERSION = "4.9%" to use GCC 4.9 in local.conf or distro conf 53992 1 net147 2015-09-12 09:45:03 +0000 Same issue with both systemd 219 in master and systemd 225 from master-next. 53993 2 raj.khem 2015-09-12 15:40:40 +0000 Can you try disabling lto with -fno-lto 53996 3 net147 2015-09-12 21:54:40 +0000 The issue still persists with the following added to the recipe: FULL_OPTIMIZATION += "-fno-lto" 54009 4 ross.burton 2015-09-14 11:09:17 +0000 Reassigning to Khem. 54167 5 ntl 2015-09-16 15:55:48 +0000 Check whether adding -fno-ipa-sra to the compiler flags works around it? https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65932 54177 6 net147 2015-09-16 22:46:55 +0000 The issue still persists with the following added to the recipe: FULL_OPTIMIZATION += "-fno-ipa-sra"(In reply to comment #5) > Check whether adding -fno-ipa-sra to the compiler flags works around it? > > https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65932 The issue still persists with the following added to the recipe: FULL_OPTIMIZATION += "-fno-ipa-sra" 54178 7 net147 2015-09-16 22:52:19 +0000 Adding both -fno-lto and -fno-ipa-sra doesn't work either: FULL_OPTIMIZATION += "-fno-lto -fno-ipa-sra" 54355 8 net147 2015-09-21 08:51:32 +0000 I have narrowed down the compiler optimizations. Disabling 2 compiler optimizations as follows resolves the issues when compiling systemd with GCC 5.2: FULL_OPTIMIZATION += "-fno-schedule-insns -fno-schedule-insns2" Both optimizations need to be disabled. Disabling only one of them does not resolve the issue. 54514 9 ross.burton 2015-09-23 11:01:58 +0000 Merged in 338f18e5808ea0472350d0c26edd0938ffbdcd23. 54583 10 net147 2015-09-23 23:55:53 +0000 Looks like V1 of the patch was merged instead of V2 which makes it ARM-specific. Any reason in particular? 54595 11 ross.burton 2015-09-24 08:02:41 +0000 Human error - master-next has a revert and V2. 55247 12 bogdanx.a.voiculescu 2015-10-13 11:07:35 +0000 Verified with master e35c404537db0b46047fcb2ee7d3645e3e0935c5 on BeagleBoneBlack board - ARMv7. ...... systemd[1]: systemd 225 running in system mode. (-PAM -AUDIT -SELINUX +IMA -APPARMOR +SMACK +SYSVINIT +UTMP -LIBCRYPTSETUP -GCRYPT +GNUTLS +ACL +XZ -LZ4 -SECCOMP +BLKID -ELFUTILS +KMOD -IDN) systemd[1]: Detected architecture arm. Welcome to Poky (Yocto Project Reference Distro) 2.0 (jethro)! systemd[1]: Set hostname to <beaglebone>. .....