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| author | Laurent Bercot <ska-skaware@skarnet.org> | 2018-01-16 00:22:38 +0000 |
|---|---|---|
| committer | Laurent Bercot <ska-skaware@skarnet.org> | 2018-01-16 00:22:38 +0000 |
| commit | 1a25a5ae57ab9620df1596c83cb1ea2897be9279 (patch) | |
| tree | 76fc324fd01482dab658782059126a1beca84e43 | |
| parent | 696245ec359b1083886b558ef41f9fcae437a088 (diff) | |
| download | mdevd-1a25a5ae57ab9620df1596c83cb1ea2897be9279.tar.xz | |
Increase default kbufsz again, to 500 kB
| -rw-r--r-- | doc/mdevd.html | 5 | ||||
| -rw-r--r-- | src/mdevd/mdevd.c | 2 |
2 files changed, 4 insertions, 3 deletions
diff --git a/doc/mdevd.html b/doc/mdevd.html index 55d1456..1a271c5 100644 --- a/doc/mdevd.html +++ b/doc/mdevd.html @@ -91,8 +91,9 @@ readiness</a>. <em>notif</em> cannot be lesser than 3. If this option is not given, no readiness notification is sent. </li> <li> <tt>-b</tt> <em>kbufsz</em> : try and reserve a kernel buffer of <em>kbufsz</em> bytes for the netlink queue. Too large a buffer wastes kernel memory; -too small a buffer risks losing events. The default is 196608 -(192 kB, which is on the large side for average systems). </li> +too small a buffer risks losing events. The default is 500 kB, which should be +enough for most systems; if you're getting "No buffer space available" errors +from mdevd at coldplug time, try increasing this number. </li> <li> <tt>-n</tt> : dry run. mdevd will not create or delete device nodes, and it will not spawn commands. Instead, it will print to stdout the actions it would have performed. </li> diff --git a/src/mdevd/mdevd.c b/src/mdevd/mdevd.c index ed83384..54e5cf6 100644 --- a/src/mdevd/mdevd.c +++ b/src/mdevd/mdevd.c @@ -990,7 +990,7 @@ int main (int argc, char const *const *argv) char const *configfile = "/etc/mdev.conf" ; iopause_fd x[2] = { { .events = IOPAUSE_READ }, { .events = IOPAUSE_READ } } ; unsigned int notif = 0 ; - unsigned int kbufsz = 196608 ; + unsigned int kbufsz = 512288 ; char const *slashdev = "/dev" ; PROG = "mdevd" ; { |