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reactor: print scheduling group along with backtrace #2221

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Closed

reactor: print scheduling group along with backtrace #2221

wants to merge 1 commit into from

Commits on May 8, 2024

  1. reactor: print scheduling group along with backtrace 

    Backtraces are printed in at least 2 cases:
  1) during segfaults,
  2) during reactor stalls.
Extra context is always helpful in identifying the exact circumstances
during which the above happen. E.g. in a server application where user
requests are processed in one (or more) scheduling group(s), background
processes are split between different scheduling groups as well, knowing
the scheduling group narrows the search space.

Prior to this commit:

```
Segmentation fault on shard 0.
Backtrace:
  ...
```

With this commit:

```
Segmentation fault on shard 0, in scheduling group main.
Backtrace:
  ...
```

Ref scylladb#2216
    @nvartolomei
    nvartolomei committed May 8, 2024
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