https://github.com/torvalds/linux
Revision 825600c0f20e595daaa7a6dd8970f84fa2a2ee57 authored by Artem Fetishev on 28 March 2014, 20:33:39 UTC, committed by Linus Torvalds on 28 March 2014, 20:56:58 UTC
On x86 uniprocessor systems topology_physical_package_id() returns -1 which causes rapl_cpu_prepare() to leave rapl_pmu variable uninitialized which leads to GPF in rapl_pmu_init(). See arch/x86/kernel/cpu/perf_event_intel_rapl.c. It turns out that physical_package_id and core_id can actually be retreived for uniprocessor systems too. Enabling them also fixes rapl_pmu code. Signed-off-by: Artem Fetishev <artem_fetishev@epam.com> Cc: Stephane Eranian <eranian@google.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
1 parent d906074
Tip revision: 825600c0f20e595daaa7a6dd8970f84fa2a2ee57 authored by Artem Fetishev on 28 March 2014, 20:33:39 UTC
x86: fix boot on uniprocessor systems
x86: fix boot on uniprocessor systems
Tip revision: 825600c
| File | Mode | Size |
|---|---|---|
| 9p | ||
| adfs | ||
| affs | ||
| afs | ||
| autofs4 | ||
| befs | ||
| bfs | ||
| btrfs | ||
| cachefiles | ||
| ceph | ||
| cifs | ||
| coda | ||
| configfs | ||
| cramfs | ||
| debugfs | ||
| devpts | ||
| dlm | ||
| ecryptfs | ||
| efivarfs | ||
| efs | ||
| exofs | ||
| exportfs | ||
| ext2 | ||
| ext3 | ||
| ext4 | ||
| f2fs | ||
| fat | ||
| freevxfs | ||
| fscache | ||
| fuse | ||
| gfs2 | ||
| hfs | ||
| hfsplus | ||
| hostfs | ||
| hpfs | ||
| hppfs | ||
| hugetlbfs | ||
| isofs | ||
| jbd | ||
| jbd2 | ||
| jffs2 | ||
| jfs | ||
| kernfs | ||
| lockd | ||
| logfs | ||
| minix | ||
| ncpfs | ||
| nfs | ||
| nfs_common | ||
| nfsd | ||
| nilfs2 | ||
| nls | ||
| notify | ||
| ntfs | ||
| ocfs2 | ||
| omfs | ||
| openpromfs | ||
| proc | ||
| pstore | ||
| qnx4 | ||
| qnx6 | ||
| quota | ||
| ramfs | ||
| reiserfs | ||
| romfs | ||
| squashfs | ||
| sysfs | ||
| sysv | ||
| ubifs | ||
| udf | ||
| ufs | ||
| xfs | ||
| Kconfig | -rw-r--r-- | 5.9 KB |
| Kconfig.binfmt | -rw-r--r-- | 7.2 KB |
| Makefile | -rw-r--r-- | 4.1 KB |
| aio.c | -rw-r--r-- | 37.8 KB |
| anon_inodes.c | -rw-r--r-- | 4.9 KB |
| attr.c | -rw-r--r-- | 7.9 KB |
| bad_inode.c | -rw-r--r-- | 7.7 KB |
| binfmt_aout.c | -rw-r--r-- | 11.1 KB |
| binfmt_elf.c | -rw-r--r-- | 57.0 KB |
| binfmt_elf_fdpic.c | -rw-r--r-- | 47.1 KB |
| binfmt_em86.c | -rw-r--r-- | 2.6 KB |
| binfmt_flat.c | -rw-r--r-- | 26.4 KB |
| binfmt_misc.c | -rw-r--r-- | 14.8 KB |
| binfmt_script.c | -rw-r--r-- | 2.7 KB |
| binfmt_som.c | -rw-r--r-- | 7.1 KB |
| bio-integrity.c | -rw-r--r-- | 17.8 KB |
| bio.c | -rw-r--r-- | 49.2 KB |
| block_dev.c | -rw-r--r-- | 41.9 KB |
| buffer.c | -rw-r--r-- | 88.8 KB |
| char_dev.c | -rw-r--r-- | 14.1 KB |
| compat.c | -rw-r--r-- | 36.7 KB |
| compat_binfmt_elf.c | -rw-r--r-- | 3.6 KB |
| compat_ioctl.c | -rw-r--r-- | 45.3 KB |
| coredump.c | -rw-r--r-- | 17.9 KB |
| dcache.c | -rw-r--r-- | 87.7 KB |
| dcookies.c | -rw-r--r-- | 6.9 KB |
| direct-io.c | -rw-r--r-- | 39.4 KB |
| drop_caches.c | -rw-r--r-- | 1.5 KB |
| eventfd.c | -rw-r--r-- | 11.3 KB |
| eventpoll.c | -rw-r--r-- | 58.9 KB |
| exec.c | -rw-r--r-- | 37.5 KB |
| fcntl.c | -rw-r--r-- | 16.3 KB |
| fhandle.c | -rw-r--r-- | 6.5 KB |
| file.c | -rw-r--r-- | 21.6 KB |
| file_table.c | -rw-r--r-- | 9.5 KB |
| filesystems.c | -rw-r--r-- | 6.4 KB |
| fs-writeback.c | -rw-r--r-- | 39.3 KB |
| fs_struct.c | -rw-r--r-- | 3.3 KB |
| inode.c | -rw-r--r-- | 48.7 KB |
| internal.h | -rw-r--r-- | 3.6 KB |
| ioctl.c | -rw-r--r-- | 15.5 KB |
| ioprio.c | -rw-r--r-- | 5.0 KB |
| libfs.c | -rw-r--r-- | 26.7 KB |
| locks.c | -rw-r--r-- | 64.8 KB |
| mbcache.c | -rw-r--r-- | 16.5 KB |
| mount.h | -rw-r--r-- | 2.8 KB |
| mpage.c | -rw-r--r-- | 19.8 KB |
| namei.c | -rw-r--r-- | 110.0 KB |
| namespace.c | -rw-r--r-- | 71.0 KB |
| no-block.c | -rw-r--r-- | 688 bytes |
| open.c | -rw-r--r-- | 25.9 KB |
| pipe.c | -rw-r--r-- | 29.3 KB |
| pnode.c | -rw-r--r-- | 9.0 KB |
| pnode.h | -rw-r--r-- | 1.5 KB |
| posix_acl.c | -rw-r--r-- | 19.8 KB |
| proc_namespace.c | -rw-r--r-- | 7.5 KB |
| read_write.c | -rw-r--r-- | 27.6 KB |
| readdir.c | -rw-r--r-- | 6.8 KB |
| select.c | -rw-r--r-- | 25.4 KB |
| seq_file.c | -rw-r--r-- | 21.7 KB |
| signalfd.c | -rw-r--r-- | 9.1 KB |
| splice.c | -rw-r--r-- | 47.7 KB |
| stack.c | -rw-r--r-- | 2.5 KB |
| stat.c | -rw-r--r-- | 12.0 KB |
| statfs.c | -rw-r--r-- | 5.3 KB |
| super.c | -rw-r--r-- | 34.4 KB |
| sync.c | -rw-r--r-- | 9.5 KB |
| timerfd.c | -rw-r--r-- | 11.4 KB |
| utimes.c | -rw-r--r-- | 5.9 KB |
| xattr.c | -rw-r--r-- | 23.5 KB |
Computing file changes ...
