Disable mmap for source files that change under us #44055
Description
| Bugzilla Link | 44710 |
| Resolution | FIXED |
| Resolved on | Jan 29, 2020 13:14 |
| Version | unspecified |
| OS | Linux |
| Blocks | #43900 |
| CC | @zmodem |
Extended Description
b500c49 turns off mmap for source files in clangd. SourceManager has a habit of crashing when the data changes from under it, most often when switching git branches.
This is a fairly safe change and eliminates a common crasher, and we've been shipping this on windows for a while already. We should merge it into 10.x