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Added error message for a kernel bug, which doesn't allow for poll() to work with >256 file descriptors and prevents iscsi-scstd to start.

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git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@416 d57e44dd-8a1f-0410-8b47-8ef2f437770f
This commit is contained in:
Vladislav Bolkhovitin
2008-06-18 09:54:38 +00:00
parent f7f8750f73
commit 5b6ba1d246
1 changed files with 20 additions and 5 deletions
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iscsi-scst/usr/iscsi_scstd.c
+20 -5
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@@ -466,11 +466,26 @@ static void event_loop(int timeout)
isns_handle(1, &timeout);
continue;
} else if (res < 0) {
if (res < 0 && errno != EINTR) {
log_error("%s:poll() %d", __FUNCTION__, errno);
exit(1);
}
continue;
if (errno == EINTR)
continue;
else if (errno == EINVAL)
log_error("%s: poll() failed with EINVAL. Should "
"you increase RLIMIT_NOFILE (ulimit -n)? "
"Or upgrade your kernel? Kernels below 2.6.19 "
"have a bug, which doesn't allow poll() "
"to work with >256 file descriptors. See "
"http://sourceforge.net/mailarchive/forum.php?"
"thread_name=9392A06CB0FDC847B3A530B3DC174E7B0"
"55F1EF3%40mse10be1.mse10.exchange.ms&forum_"
"name=scst-devel for more details. Alternatively, "
"you can desrease iscsi_scstd.c::INCOMING_MAX "
"constant to a lower value, e.g. 128, then "
"recompile and reinstall the user space part "
"of iSCSI-SCST.", __FUNCTION__);
else
log_error("%s: poll() failed: %s", __FUNCTION__,
strerror(errno));
exit(1);
}
for (i = 0; i < LISTEN_MAX; i++) {