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createdump: only dump committed memory - #79853
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Tagging subscribers to this area: @tommcdon Issue DetailsDumping memory regions as they are listed in This change uses Fixes #71472
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The same |
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Oh I messed up the branch trying to update it to the tip of the main... I'll try to fix it |
Dumping memory regions as they are listed in /proc/pid/maps results in increase of RAM usage of the target application on some Linux kernels. This change uses /proc/pid/pagemap to check if the page is committed before adding it to the regions list. As the file is not available on kernels 4.0 and 4.1 without elevated permissions there's a fallback to previous behavior.
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Error is known and tracked in build analysis |
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Thanks @ezsilmar! |
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Is it possible to get the fixed |
Dumping memory regions as they are listed in /proc/pid/maps results in increase of RAM usage of the target application on some Linux kernels. This change uses /proc/pid/pagemap to check if the page is committed before adding it to the regions list. As the file is not available on kernels 4.0 and 4.1 without elevated permissions there's a fallback to previous behavior. Conflicts: src/coreclr/debug/createdump/crashinfo.cpp src/coreclr/debug/createdump/crashinfo.h
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createdump uses libmscordaccore. There's been quite a few changes from 8.0 to 6.0. This change would need to be ported to 6.0 - I'll need to do some testing, but generally I've heard interest to take it into servicing. I'll prepare the patch, but it might be a while for it to go into the proper released product. |
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/backport to release/7.0 |
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Started backporting to release/7.0: https://github.com/dotnet/runtime/actions/runs/3784244575 |
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Dumping memory regions as they are listed in
/proc/pid/mapsresults in increase of RAM usage of the target application on some Linux kernels.This change uses
/proc/pid/pagemapto check if the page is committed before adding it to the regions list. As the file is not available on kernels 4.0 and 4.1 without elevated permissions there's a fallback to previous behavior.Fixes #71472