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Add ZT_NO_UNALIGNED_ACCESS for ARMv6/7 on FreeBSD #1294

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merged 1 commit into from Nov 25, 2020
Merged

Add ZT_NO_UNALIGNED_ACCESS for ARMv6/7 on FreeBSD #1294

merged 1 commit into from Nov 25, 2020

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darkain
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@darkain darkain commented Nov 21, 2020

Unaligned access caused SIGBUS errors on ARMv6 and ARMv7 targets under FreeBSD.

This was also the cause of the repeating TAP devices. Each time the SIGBUS happened, the service would auto-restart itself, create a new TAP device, and then crash again.

The particular place causing the SIGBUS was:
https://github.com/zerotier/ZeroTierOne/blob/master/node/Utils.hpp#L695

Unaligned access caused SIGBUS errors on ARMv6 and ARMv7 targets under FreeBSD.

This was also the cause of the repeating TAP devices. Each time the SIGBUS happened, the service would auto-restart itself, create a new TAP device, and then crash again.

The particular place causing the SIGBUS was:
https://github.com/zerotier/ZeroTierOne/blob/master/node/Utils.hpp#L695
@adamierymenko adamierymenko merged commit 0ba358a into zerotier:master Nov 25, 2020
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