svn commit: r343030 - in head/sys: cam conf dev/md dev/nvme fs/fuse fs/nfsclient fs/smbfs kern sys ufs/ffs vm
glebius at freebsd.org
Thu Feb 14 23:34:19 UTC 2019
On Wed, Feb 13, 2019 at 07:24:50PM -0600, Justin Hibbits wrote:
J> This seems to break 32-bit platforms, or at least 32-bit book-e
J> powerpc, which has a limited KVA space (~500MB). It preallocates I've
J> seen over 2500 pbufs, at 128kB each, eating up over 300MB KVA,
J> leaving very little left for the rest of runtime.
J> I spent a couple hours earlier today debugging with Mark Johnston, and
J> his consensus is that the vnode_pbuf_zone is too big on 32-bit
J> platforms. Unfortunately I know very little about this area, so can't
J> provide much extra insight, but can readily reproduce the issues I see
J> triggered by this change, so am willing to help where I can.
Ok, let's roll back to old default on 32-bit platforms and somewhat
reduce the default on 64-bits.
Can you please confirm that the patch attached works for you?
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