Date: Fri, 26 May 2000 06:47:03 -0700 (PDT) From: Andrew Gallatin <gallatin@FreeBSD.org> To: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/net if_loop.c Message-ID: <200005261347.GAA86951@freefall.freebsd.org>
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gallatin 2000/05/26 06:47:03 PDT
Modified files:
sys/net if_loop.c
Log:
Rather than checking for hlen causing misalignment, we should do the
m_adj() and then check the resulting mbuf for misalignment, copying
backwards to align the mbuf if required.
This fixes a longstanding problem where an mbuf which would have been
properly aligned after an m_adj() was being misaligned and causing an
unaligned access trap in ip_input(). This bug only triggered when booting
diskless.
Reviewed by: dfr
Revision Changes Path
1.49 +10 -8 src/sys/net/if_loop.c
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