Re: tried ia64-net-20020506.iso, (rx4610) failed with map_single IO TLB kernel panic...
>>>>> On Wed, 22 May 2002 13:45:36 +0200, "Jiri Polach" <sprava@jh-inst.cas.cz> said:
Jiri> To be more specific:
Jiri> "Kernel panic: map_single: could not allocate software IO TLB
Jiri> (1552 bytes)"
Jiri> So strictly speaking I probably do not need swiotlb=32768, but
Jiri> something like swiotlb=2048 should be sufficient. On the other
Jiri> hand the default is too small.
Yes, but I'm wondering why 1024 isn't enough. IIRC, the eepro100
driver uses a tx/rx buffer that has at most 64 packets, so a software
I/O TLB of 2MB should be plenty big. Also, I have never seen this
problem myself, so I'm wondering whether this problem pops up only
under certain circumstances.
--david
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