Messages in this thread | | | Subject | 2.1.78 read(2) bug | Date | Fri, 9 Jan 1998 14:51:02 -0600 (CST) | From | Jon Nelson <> |
| |
I've been experiencing a problem with the 2.1.78 kernel. On my 2.0.33 box, read(fd, buffer, 0) (that's a zero) returns instantly and gives a return value of 0, always. This is consistent with the read(2)'s behavior as documented in the manpage:
If count is zero, read() returns zero and has no other results. If count is greater than SSIZE_MAX, the result is unspecified.
However, on 2.1.78, read(2) waits for input, which it shouldn't do, and in certain situations returns -1 with errno = EAGAIN.
Can anybody confirm this? I am able to reproduce the bug but it is a lengthy process and not suitable for this method of information conveyance.
-- Jon Nelson U of MN Housing and Res. Life Computing Supervisor nels0988@tc.umn.edu
| |