On Thu, 2013-02-07 at 18:27 +0100, Joerg Roedel wrote: > > Second, I think that it should be a pr_warn instead of a full WARN. When > IRQ remapping could not be enabled it's most likely because of the BIOS > or the hardware. So a message in the kernel log will do and the > backtrace provides no additional value.
Backtraces add visibility and have proven to be extremely useful in the past for getting people to actually *fix* broken BIOSes. When kerneloops.org was running, it also gave very good statistics which helped to apply pressure. -- dwmw2
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