summaryrefslogtreecommitdiffstats
path: root/mm
diff options
context:
space:
mode:
authorChristoph Lameter <cl@linux.com>2013-02-05 16:36:47 +0000
committerPekka Enberg <penberg@kernel.org>2013-02-06 20:32:13 +0200
commitc601fd6956e92b0eb268d4af754073c76155b99d (patch)
tree98703cec4f2d969ea79520067babd17bedfa2222 /mm
parentca34956b804b7554fc4e88826773380d9d5122a8 (diff)
downloadlinux-c601fd6956e92b0eb268d4af754073c76155b99d.tar.gz
linux-c601fd6956e92b0eb268d4af754073c76155b99d.tar.bz2
linux-c601fd6956e92b0eb268d4af754073c76155b99d.zip
slab: Handle ARCH_DMA_MINALIGN correctly
James Hogan hit boot problems in next-20130204 on Meta: META213-Thread0 DSP [LogF] kobject (4fc03980): tried to init an initialized object, something is seriously wrong. META213-Thread0 DSP [LogF] META213-Thread0 DSP [LogF] Call trace: META213-Thread0 DSP [LogF] [<4000888c>] _show_stack+0x68/0x7c META213-Thread0 DSP [LogF] [<400088b4>] _dump_stack+0x14/0x28 META213-Thread0 DSP [LogF] [<40103794>] _kobject_init+0x58/0x9c META213-Thread0 DSP [LogF] [<40103810>] _kobject_create+0x38/0x64 META213-Thread0 DSP [LogF] [<40103eac>] _kobject_create_and_add+0x14/0x8c META213-Thread0 DSP [LogF] [<40190ac4>] _mnt_init+0xd8/0x220 META213-Thread0 DSP [LogF] [<40190508>] _vfs_caches_init+0xb0/0x160 META213-Thread0 DSP [LogF] [<401851f4>] _start_kernel+0x274/0x340 META213-Thread0 DSP [LogF] [<40188424>] _metag_start_kernel+0x58/0x6c META213-Thread0 DSP [LogF] [<40000044>] __start+0x44/0x48 META213-Thread0 DSP [LogF] META213-Thread0 DSP [LogF] devtmpfs: initialized META213-Thread0 DSP [LogF] L2 Cache: Not present META213-Thread0 DSP [LogF] BUG: failure at fs/sysfs/dir.c:736/sysfs_read_ns_type()! META213-Thread0 DSP [LogF] Kernel panic - not syncing: BUG! META213-Thread0 DSP [Thread Exit] Thread has exited - return code = 4294967295 And bisected the problem to commit 95a05b4 ("slab: Common constants for kmalloc boundaries"). As it turns out, a fixed KMALLOC_SHIFT_LOW does not work for arches with higher alignment requirements. Determine KMALLOC_SHIFT_LOW from ARCH_DMA_MINALIGN instead. Reported-and-tested-by: James Hogan <james.hogan@imgtec.com> Signed-off-by: Christoph Lameter <cl@linux.com> Signed-off-by: Pekka Enberg <penberg@kernel.org>
Diffstat (limited to 'mm')
0 files changed, 0 insertions, 0 deletions