| … | |
… | |
| 4 | Glibc contains a bug that causes any program linked against pthreads AND |
4 | Glibc contains a bug that causes any program linked against pthreads AND |
| 5 | using coroutines (of any kind, not only Coro, but including most userspace |
5 | using coroutines (of any kind, not only Coro, but including most userspace |
| 6 | thread libraries like gnu-pth) or alternate stacks to segfault on calls to |
6 | thread libraries like gnu-pth) or alternate stacks to segfault on calls to |
| 7 | pthread functions. And glibc happens to do a lot of these calls. |
7 | pthread functions. And glibc happens to do a lot of these calls. |
| 8 | |
8 | |
| 9 | (Even if you pelr is not compiled against pthreads, Time::HiRes links |
9 | (Even if you perl is not compiled against pthreads, Time::HiRes links |
| 10 | against -lrt, which drags in pthreads. The same is true for other modules, |
10 | against -lrt, which drags in pthreads. The same is true for other modules, |
| 11 | so watch out). |
11 | so watch out). |
| 12 | |
12 | |
| 13 | The bug is rather difficult to fix. This is not a problem, however, since |
13 | The bug is rather difficult to fix. This is not a problem, however, since |
| 14 | glibcs compiled for linux-2.4 use a much more efficient method to locate |
14 | glibcs compiled for linux-2.4 use a much more efficient method to locate |
| … | |
… | |
| 21 | |
21 | |
| 22 | UPDATE: I am no longer able to compile glibc-2.3.2 in this way. The reason |
22 | UPDATE: I am no longer able to compile glibc-2.3.2 in this way. The reason |
| 23 | is most probably that the glibc folks work on an enhanced thread local |
23 | is most probably that the glibc folks work on an enhanced thread local |
| 24 | storage facility, and it might be that you need a 2.5 or 2.6 kernel to |
24 | storage facility, and it might be that you need a 2.5 or 2.6 kernel to |
| 25 | make it work. Glibc-2.3.1 works fine, though. |
25 | make it work. Glibc-2.3.1 works fine, though. |
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26 | |
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27 | UPDATE: Time::HiRes in current perl snapshots does no longer link against |
|
|
28 | -lrt. That still means you need to patch it until 5.9.x gets out. |
