Alvaro Herrera <alvherre@xxxxxxxxxxxxxxx> writes: > On 2019-Mar-08, Peter wrote: >> On Fri, Mar 08, 2019 at 02:35:33AM +0000, Andrew Gierth wrote: >>> ! I'm pretty sure nothing in our buildfarm is i386 without SSE2 though. >> *laugh* no problem with that. There probably wouldn't be any reason >> to have such. > Actually there *is* a very good reason to have one, which is that we > would have discovered this bug right away. (Just ask Tom Lane for a > tally of bugs that have been discovered due to his old HPUX 10.20 > dinosaur he keeps running just for that purpose). It seems difficult to > grab hold of such hardware, however. I don't suppose you have many > spare cycles on that machine of yours to run a buildfarm animal? IIUC, this bug isn't actually down to the old hardware: any SSE-capable chip ought to exhibit the same problem. The bug is in the toolchain somewhere, in that some compiler or run-time infrastructure is failing to maintain 16-byte stack alignment as required by the ABI. Or, possibly, there is disagreement among relevant toolchain elements as to exactly what ABI they're using. regards, tom lane
