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authorAndrew Jones <drjones@redhat.com>2009-12-18 10:31:31 +0100
committerKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>2011-06-15 14:18:49 -0400
commit900cba8881b39dfbc7c8062098504ab93f5387a8 (patch)
treed08e43f817794ebc8eda1ea79b7662772a33529a /drivers/xen/events.c
parenta91d92875ee94e4703fd017ccaadb48cfb344994 (diff)
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op-kernel-dev-900cba8881b39dfbc7c8062098504ab93f5387a8.tar.gz
xen: support CONFIG_MAXSMP
The MAXSMP config option requires CPUMASK_OFFSTACK, which in turn requires we init the memory for the maps while we bring up the cpus. MAXSMP also increases NR_CPUS to 4096. This increase in size exposed an issue in the argument construction for multicalls from xen_flush_tlb_others. The args should only need space for the actual number of cpus. Also in 2.6.39 it exposes a bootup problem. BUG: unable to handle kernel NULL pointer dereference at (null) IP: [<ffffffff8157a1d3>] set_cpu_sibling_map+0x123/0x30d ... Call Trace: [<ffffffff81039a3f>] ? xen_restore_fl_direct_reloc+0x4/0x4 [<ffffffff819dc4db>] xen_smp_prepare_cpus+0x36/0x135 .. CC: stable@kernel.org Signed-off-by: Andrew Jones <drjones@redhat.com> [v2: Updated to compile on 3.0] [v3: Updated to compile when CONFIG_SMP is not defined] Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Diffstat (limited to 'drivers/xen/events.c')
0 files changed, 0 insertions, 0 deletions
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