Jeroen Demeyer on Fri, 13 May 2016 11:18:04 +0200

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Segfault on Cygwin64 when parisizemax > 4GB

Dear PARI developers,

While trying Sage on 64-bit Cygwin, we got a segfault in a cgetr() call during Sage startup. It turns out that the bug is actually in the mmap() implementation of Cygwin and it happens whenever parisizemax is larger than 4GB. The Cygwin bug is reported at

Perhaps PARI should add a workaround for this bug, for example putting a cap on parisizemax on Cygwin?