buffer: fix negative index for large buffers #13655
| Job | Run time |
|---|---|
| 1m 12s | |
| 20s | |
| 21m 11s | |
| 29m 37s | |
| 37m 11s | |
| 29m 44s | |
| 24m 40s | |
| 23m 20s | |
| 24m 42s | |
| 24m 4s | |
| 23m 49s | |
| 3h 59m 50s |
| Job | Run time |
|---|---|
| 1m 12s | |
| 20s | |
| 21m 11s | |
| 29m 37s | |
| 37m 11s | |
| 29m 44s | |
| 24m 40s | |
| 23m 20s | |
| 24m 42s | |
| 24m 4s | |
| 23m 49s | |
| 3h 59m 50s |