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Author vstinner
Recipients Arfrever, David.Edelsohn, christian.heimes, glaubitz, lukasz.langa, vstinner
Date 2021-02-15.16:06:50
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> s390 is a 31-bit platform, not a 32-bit platform.

ARM64 only uses 48 bits for the address, but it uses 64-bit CPU words. Usually, we refer to an architecture by its CPU word, 32 or 64 bits. s390 uses 32-bit CPU words, no?

The Wikipedia article says:

"ESA/390 is arguably a 32-bit architecture; as with System/360, System/370, 370-XA, and ESA/370, the general-purpose registers are 32 bits long, and the arithmetic instructions support 32-bit arithmetic. Only byte-addressable real memory (Central Storage) and Virtual Storage addressing is limited to 31 bits."

> s390 packages are still being built for SUSE Linux Enterprise 12 which is still actively supported. I assume the same applies to RHEL LTS releases but I can't verify that as I have no insight into RedHat's internal build system.

Red Hat maintains Fedora and RHEL, none is supporting s390, but both support s390x:


Note: The correct name is Red Hat ;-)
Date User Action Args
2021-02-15 16:06:50vstinnersetrecipients: + vstinner, christian.heimes, Arfrever, lukasz.langa, David.Edelsohn, glaubitz
2021-02-15 16:06:50vstinnersetmessageid: <>
2021-02-15 16:06:50vstinnerlinkissue43179 messages
2021-02-15 16:06:50vstinnercreate