search for: nosuch

...ly > sane way to use a filter is to compile it at the same time/version as > the nbdkit binary that will load it). But you do have a point that > checking for files is still more fragile than just asking nbdkit whether > a given filter exists: > > $ nbdkit --dump-plugin --filter=nosuch null > nbdkit: error: cannot open filter 'nosuch': > /usr/lib64/nbdkit/filters/nbdkit-nosuch-filter.so: cannot open shared > object file: No such file or directory This is definitely the best we can do now, and I've posted a patch suggesting this change for the nbdkit-probing(...

R-help I have installed R 2.0.0 ( Windows) on my machine and had several 'crashes' while working on it. I have reinstalled a couple of times and still got strange behaviour from time to time(screen goes white and no prompt is printed out,,,) Last time I have reinstalled I checked the md5sum.txt (md5sum output for the setup program and went O.K) and also Md5 from which I paste a piece of

On Fri, Sep 20, 2019 at 10:28:18AM +0100, Richard W.M. Jones wrote: >The readahead filter is a self-configuring filter that makes >sequential reads faster when the plugin is slow (and all of the >plugins we use here are always slow). > >I observed the behaviour of the readahead filter with our qcow2 >overlay when converting a guest from a vCenter source. Even when >doing

...ompile it at the same time/version as > >>the nbdkit binary that will load it). But you do have a point that > >>checking for files is still more fragile than just asking nbdkit whether > >>a given filter exists: > >> > >>$ nbdkit --dump-plugin --filter=nosuch null > >>nbdkit: error: cannot open filter 'nosuch': > >>/usr/lib64/nbdkit/filters/nbdkit-nosuch-filter.so: cannot open shared > >>object file: No such file or directory > > > >This is definitely the best we can do now, and I've posted a patch >...

Using slot() on object (or "@") and using a nonexistent slotname returns an error (see example code). R> setClass("foobar", representation=list(a="numeric")) [1] "foobar" R> foobar <- new("foobar", a=5) R> foobar at a [1] 5 R> foobar at b Error: no slot of name "b" for this object of class "foobar" The details

...use a filter is to compile it at the same time/version as >> the nbdkit binary that will load it). But you do have a point that >> checking for files is still more fragile than just asking nbdkit whether >> a given filter exists: >> >> $ nbdkit --dump-plugin --filter=nosuch null >> nbdkit: error: cannot open filter 'nosuch': >> /usr/lib64/nbdkit/filters/nbdkit-nosuch-filter.so: cannot open shared >> object file: No such file or directory > >This is definitely the best we can do now, and I've posted a patch >suggesting this change...

...rantees for filters, so the only sane way to use a filter is to compile it at the same time/version as the nbdkit binary that will load it). But you do have a point that checking for files is still more fragile than just asking nbdkit whether a given filter exists: $ nbdkit --dump-plugin --filter=nosuch null nbdkit: error: cannot open filter 'nosuch': /usr/lib64/nbdkit/filters/nbdkit-nosuch-filter.so: cannot open shared object file: No such file or directory $ echo $? 1 $ nbdkit --dump-plugin --filter=cache null path=/usr/lib64/nbdkit/plugins/nbdkit-null-plugin.so name=null ... $ echo $? 0...

[tim at javadev1 tim]$ scp opteron:/tmp/tim2 boomshakalaka:/tmp ssh: boomshakalaka: Name or service not known lost connection [tim at javadev1 tim]$ echo $? 0 And if so why given that the man page says: "DIAGNOSTICS scp exits with 0 on success or >0 if an error occurred." I've tried to search the archives to no avail BTW. Sorry if I am asking the wrong question in the

The latest version of dispatch.fcgi in the trunk has the following code snippet: trap("USR1") do # Go to exit as soon as possible. end One of the issues I encountered while debugging fcgi under windows is that SIGUSR1 is not supported in the native Windows version of Ruby (though it is in cygwin). Currently, I have it commented out to allow dispatch.fcgi to run without blowing up.

...- * Copyright (C) 2013-2019 Red Hat Inc. + * Copyright (C) 2013-2020 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public @@ -30,6 +30,8 @@ #include <libnbd.h> +#define BOGUS_CONTEXT "x-libnbd:nosuch" + static int check_extent (void *data, const char *metacontext, uint64_t offset, @@ -58,6 +60,18 @@ main (int argc, char *argv[]) exit (EXIT_FAILURE); } + /* No contexts requested by default */ + if ((r = nbd_get_nr_meta_contexts...

...absolute file even though we passed a relative # name, showing that our shim did adjust it. -nbdkit vddk libdir=.libs \ - file=/dev/null --run ':' 2> test-vddk.err || : +nbdkit vddk libdir=.libs /dev/null --run ':' 2> test-vddk.err || : cat test-vddk.err grep '/.libs/nosuch' test-vddk.err -- 2.24.1

...wing that our shim did adjust it. > > -nbdkit vddk libdir=.libs \ > > - file=/dev/null --run ':' 2> test-vddk.err || : > > +nbdkit vddk libdir=.libs /dev/null --run ':' 2> test-vddk.err || : > > cat test-vddk.err > > > > grep '/.libs/nosuch' test-vddk.err > > Yup, this is fine, ACK. Actually it doesn't apply - maybe depends on something else? Anyway the change itself is still fine. Rich. -- Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones Read my programming and virtualization blog: htt...

...d a relative > # name, showing that our shim did adjust it. > -nbdkit vddk libdir=.libs \ > - file=/dev/null --run ':' 2> test-vddk.err || : > +nbdkit vddk libdir=.libs /dev/null --run ':' 2> test-vddk.err || : > cat test-vddk.err > > grep '/.libs/nosuch' test-vddk.err Yup, this is fine, ACK. Rich. -- Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones Read my programming and virtualization blog: http://rwmj.wordpress.com virt-df lists disk usage of guests without needing to install any software inside the virtual...

...quot;\n", s); + exit (EXIT_FAILURE); + } + if ((r = nbd_get_structured_replies_negotiated (nbd)) != 1) { + fprintf (stderr, + "incorrect structured replies %d, expected 1\n", r); + exit (EXIT_FAILURE); + } + switch (nbd_can_meta_context (nbd, "x-libnbd:nosuch")) { case -1: fprintf (stderr, "%s\n", nbd_get_error ()); diff --git a/tests/oldstyle.c b/tests/oldstyle.c index b90b775..c9c01f8 100644 --- a/tests/oldstyle.c +++ b/tests/oldstyle.c @@ -115,13 +115,18 @@ main (int argc, char *argv[]) exit (EXIT_FAILURE); } - /* Pro...

In v2: ack'ed preliminary patches have been pushed, and I've added a lot of testsuite coverage as well as putting the new API to use in nbdinfo. Eric Blake (2): api: Add nbd_opt_list_meta_context info: List available meta-contexts lib/internal.h | 1 + generator/API.ml | 84 ++++++++-

...fig_file) { - /* Do nothing, only exit with no error. */ + /* Simulate the fact that real vddk calls dlopen("relative"), to see + * that our shim kicks in and rewrites it. We pass invalid flags, so + * the dlopen fails, but only after going through our shim. + */ + dlopen("nosuch", RTLD_LAZY); + + /* dlopen() should have failed, but if id didn't exit, neither to we. */ return VIX_OK; } diff --git a/tests/test-vddk-real.sh b/tests/test-vddk-real.sh index 52c91232..d9cf3319 100755 --- a/tests/test-vddk-real.sh +++ b/tests/test-vddk-real.sh @@ -1,6 +1,6 @@ #!/u...

...There might be a way to express this via requires (similar to the way I checked for --image-opts support above), via a harmless probe of a known-existing file. But I didn't spend time coming up with such a working command line probe (I got distracted by the fact that 'qemu-img info --object nosuch file' has status 1 but no error message on stderr, oops). Looks like you're ready to go. -- Eric Blake, Principal Software Engineer Red Hat, Inc. +1-919-301-3226 Virtualization: qemu.org | libvirt.org

...;dir1/"), SERVER_DIR("dir2/") NBD_OPT_LIST_HIER("dir1/") => SERVER("dir1/f2"), SERVER("dir1/f3") NBD_OPT_LIST_HIER("dir2/") => SERVER("dir2/f4") NBD_OPT_LIST_HIER("f1") => NBD_REP_ERR_NOTDIR NBD_OPT_LIST_HIER("nosuch") => NBD_REP_ERR_UNKNOWN True, this hierarchy is only available to new client/server pairs (if either side lacks the new code, you're back to flat listings), but it is food for thought. I'll propose something on the upstream NBD list if we think it has potential. > > I...

I'm posting this now, as I'm at the end of a workday and I got things working for manual experimentation. Still to do: - write interop tests for qemu-nbd and nbdkit (including my proposed patch addition of qemu-nbd -A to show qemu:allocation-depth) - figure out if we can make 'nbdinfo --map' use the new API to automatically select all contexts advertised by the server Eric Blake

Hi Eric, Nir. $SUBJECT - it's complicated! Imagine a scenario where we have extended the file plugin so you can point it at a directory and it will use the client-supplied export name to select a file to serve. Also we have extended the tar filter so that you can map tar file components into export names. You may be able to see where this is going ... Now we point the file plugin at a