31 lines
1.1 KiB
Diff
31 lines
1.1 KiB
Diff
From 5968b1c304188e466759b8ba419fc10f150e5541 Mon Sep 17 00:00:00 2001
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From: Tom Gundersen <teg@jklm.no>
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Date: Thu, 28 Aug 2014 15:59:13 +0200
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Subject: [PATCH] sd-rtnl: log if kernel buffer is overrun as we currently
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can't handle that case
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---
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src/libsystemd/sd-rtnl/rtnl-message.c | 7 +++++--
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1 file changed, 5 insertions(+), 2 deletions(-)
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diff --git a/src/libsystemd/sd-rtnl/rtnl-message.c b/src/libsystemd/sd-rtnl/rtnl-message.c
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index 1f596ca10c..906a9de1c0 100644
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--- a/src/libsystemd/sd-rtnl/rtnl-message.c
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+++ b/src/libsystemd/sd-rtnl/rtnl-message.c
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@@ -1132,10 +1132,13 @@ static int socket_recv_message(int fd, struct iovec *iov, uint32_t *_group, bool
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assert(iov);
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r = recvmsg(fd, &msg, MSG_TRUNC | (peek ? MSG_PEEK : 0));
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- if (r < 0)
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+ if (r < 0) {
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/* no data */
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+ if (errno == ENOBUFS)
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+ log_debug("rtnl: kernel receive buffer overrun");
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+
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return (errno == EAGAIN) ? 0 : -errno;
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- else if (r == 0)
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+ } else if (r == 0)
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/* connection was closed by the kernel */
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return -ECONNRESET;
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