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lib: Provide some better error handling for operator

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When an operator encounters a situation where the number
of FD's open is greater than what we have been configured
to legitimately handle via uname or the `--limit-fds` command
line, abort with a message that they should be able to
debug and figure out what is going on.

Fixes: #8596
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
This commit is contained in:
Donald Sharp 2021-05-02 07:39:36 -04:00
parent 83187b8285
commit 188acbb9a3
1 changed files with 4 additions and 1 deletions
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5
lib/thread.c
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@ -862,7 +862,10 @@ struct thread *_thread_add_read_write(const struct xref_threadsched *xref,
xref->funcname, xref->xref.file, xref->xref.line, xref->funcname, xref->xref.file, xref->xref.line,
t_ptr, fd, 0, arg, 0); t_ptr, fd, 0, arg, 0);
assert(fd >= 0 && fd < m->fd_limit); assert(fd >= 0);
if (fd >= m->fd_limit)
assert(!"Number of FD's open is greater than FRR currently configured to handle, aborting");
frr_with_mutex(&m->mtx) { frr_with_mutex(&m->mtx) {
if (t_ptr && *t_ptr) if (t_ptr && *t_ptr)
// thread is already scheduled; don't reschedule // thread is already scheduled; don't reschedule