FreeBSD Bugzilla – Attachment 236664 Details for
Bug 264257
[tcp] Panic: Fatal trap 12: page fault while in kernel mode (if_io_tqg_4) - m_copydata ... at /usr/src/sys/kern/uipc_mbuf.c:659
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[patch]
Fix offset computation
tcp_output.patch (text/plain), 565 bytes, created by
Michael Tuexen
on 2022-09-18 13:09:10 UTC
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Description:
Fix offset computation
Filename:
MIME Type:
Creator:
Michael Tuexen
Created:
2022-09-18 13:09:10 UTC
Size:
565 bytes
patch
obsolete
>diff --git a/sys/netinet/tcp_output.c b/sys/netinet/tcp_output.c >index 9a395f59316..39b8c698709 100644 >--- a/sys/netinet/tcp_output.c >+++ b/sys/netinet/tcp_output.c >@@ -331,10 +331,10 @@ tcp_output(struct tcpcb *tp) > tp->snd_recover - p->rxmit)); > } else > len = ((int32_t)ulmin(cwin, p->end - p->rxmit)); >- off = p->rxmit - tp->snd_una; > KASSERT(off >= 0,("%s: sack block to the left of una : %d", > __func__, off)); > if (len > 0) { >+ off = p->rxmit - tp->snd_una; > sack_rxmit = 1; > sendalot = 1; > TCPSTAT_INC(tcps_sack_rexmits);
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