Commit-ID: c822f79d3a5a7e53763e5a5c2dadc27cdd240504 Gitweb: http://git.kernel.org/tip/c822f79d3a5a7e53763e5a5c2dadc27cdd240504 Author: Yinghai Lu <yinghai@xxxxxxxxxx> AuthorDate: Wed, 15 Apr 2009 18:39:13 -0700 Committer: Ingo Molnar <mingo@xxxxxxx> CommitDate: Fri, 17 Apr 2009 02:56:52 +0200 x86/irq: mark NUMA_MIGRATIE_IRQ_DESC broken It causes crash on system with lots of cards with MSI-X when irq_balancer enabled... The patches fixing it were both complex and fragile, according to Eric they were also doing quite dangerous things to the hardware. Instead we now have patches that solve this problem via static NUMA node mappings - not dynamic allocation and balancing. The patches are much simpler than this method but are still too large outside of the merge window, so we mark the dynamic balancer as broken for now, and queue up the new approach for v2.6.31. [ Impact: deactivate broken kernel feature ] Reported-by: Suresh Siddha <suresh.b.siddha@xxxxxxxxx> Signed-off-by: Yinghai Lu <yinghai@xxxxxxxxxx> Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> Cc: "Eric W. Biederman" <ebiederm@xxxxxxxxxxxx> Cc: Rusty Russell <rusty@xxxxxxxxxxxxxxx> LKML-Reference: <49E68C41.4020801@xxxxxxxxxx> Signed-off-by: Ingo Molnar <mingo@xxxxxxx> --- arch/x86/Kconfig | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index bc25b9f..b1d2be7 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -277,6 +277,7 @@ config SPARSE_IRQ config NUMA_MIGRATE_IRQ_DESC bool "Move irq desc when changing irq smp_affinity" depends on SPARSE_IRQ && NUMA + depends on BROKEN default n ---help--- This enables moving irq_desc to cpu/node that irq will use handled. -- To unsubscribe from this list: send the line "unsubscribe linux-tip-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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