search for: pread

On 01/07/16 19:28, Jeremy Allison wrote: > On Fri, Jul 01, 2016 at 10:00:21AM +0100, Alex Crow wrote: >> Hi, >> >> We've had a strange issue after following the recommendations at >> https://wiki.samba.org/index.php/Ping_pong, particularly the part >> about mmap coherence. We are running CTDB/Samba over a MooseFS >> clustered FS, and we'd not done the

...ows explorer but I must know which one was opened. Its generate me a lot of unnecessary entrys in /var/log/messages. Other operations on files like remove delete or rename are logged correctly. PLEASE HELP ! See my smb.conf Mar 18 09:54:00 localhost smbd_audit: fujitsu|sm17|10.10.10.160|skany|pread|ok|2007/11005_07.tif Mar 18 09:54:00 localhost smbd_audit: fujitsu|sm17|10.10.10.160|skany|pread|ok|2007/12795_07.tif Mar 18 09:54:00 localhost smbd_audit: fujitsu|sm17|10.10.10.160|skany|pread|ok|2007/12795_07.tif Mar 18 09:54:00 localhost smbd_audit: fujitsu|sm17|10.10.10.160|skany|pread|ok|20...

As suggested by Nir, here: https://www.redhat.com/archives/libguestfs/2019-November/thread.html#00220

...| 5 ++-- 5 files changed, 36 insertions(+), 29 deletions(-) diff --git a/plugins/python/example.py b/plugins/python/example.py index c85d2f8..c04b7e2 100644 --- a/plugins/python/example.py +++ b/plugins/python/example.py @@ -60,10 +60,12 @@ def get_size(h): return len(disk) -def pread(h, count, offset, flags): +def pread(h, buf, offset, flags): global disk - return disk[offset:offset+count] - + end = offset + len(buf) + buf[:] = disk[offset:end] + # or if reading from a file you can use: + #f.readinto(buf) def pwrite(h, buf, offset, flags): global dis...

(Note: I am not subscribed to this ML, so please be sure to CC me in replies.) Hello, I see a strange bug when running dovecot under btrfs with a mailbox in mdbox format. At some point, which can take a few minutes or more than a day, dovecot starts logging pread() failures, like so: Apr 02 23:43:42 thetick dovecot[570]: imap(marcec): Error: pread() failed with file /home/marcec/.mdbox/mailboxes/LinuxAudio/User/dbox- Mails/dovecot.index.log: Input/output error These would trigger when getmail runs (which in turn is configured to use dovecot-lda). It...

pread() can return now any object supporting the buffer protocol[1] such as bytearray, bytes, or memoryview. [1] https://docs.python.org/3/c-api/buffer.html --- When the new python tests will be in master we can add some automated tests. For now I tested this manually using the example plugin as is an...

...load those headers. -------------------------------------------- 17:19:27.670428 open("/dap/mstorage/example.com/dino/Maildir/cur/ 1201079181.H112920P11724.mx01.example.com,S=3841:2,", O_RDONLY) = 11 17:19:27.670631 fstat(11, {st_mode=S_IFREG|0600, st_size=3841, ...}) = 0 17:19:27.670691 pread(11, "Return-path: <dino at example.com>\nE"..., 4096, 0) = 3841 17:19:31.725525 pread(11, "", 255, 3841) = 0 17:19:31.725624 pread(11, "Return-path: <dino at example.com>\nE"..., 4096, 0) = 3841 17:19:31.725729 pread(11, "Return-path: <dino at e...

...//git.kernel.org/?p=libs/klibc/klibc.git;a=commit;h=75895304280f597f46551deb8b87c27ac18a013c Author: Helge Deller <deller at gmx.de> AuthorDate: Wed, 6 Jan 2016 00:43:50 +0000 Committer: H. Peter Anvin <hpa at linux.intel.com> CommitDate: Tue, 5 Jan 2016 17:45:50 -0800 [klibc] Add pread and pwrite 32bit syscall wrappers for parisc On the hppa arch (32bit userspace and 32 or 64bit kernel), the fstype program fails to detect the filesystem. The reason for this failure is, that fstype calls the pread() syscall, which has on some architectures with 32bit userspace a different callin...

...) doveconf: Panic: output stream is missing error handling /1: write(2, " d o v e c o n f : P a".., 58) = 58 /1: getcontext(0xFFBFE988) /1: open("/proc/self/as", O_RDONLY) = 8 /1: fstat64(8, 0xFFBFE7B8) = 0 /1: pread(8, "FFBFEB H", 4, 0xFFBFE958) = 4 /1: pread(8, "FF\0CBD0", 4, 0xFFBFE95C) = 4 /1: pread(8, "FFBFEBA8", 4, 0xFFBFEB80) = 4 /1: pread(8, "FF01B11C", 4, 0xFFBFEB84) = 4 /1: pread(8, "FFBFEC\b&q...

...n 11.11 could be affected. Customers building their own Samba server can find that on 11.11 the performance is slower than on 11.0 when testing with smbtorture, and possibly slower in production. The HP produced Samba version did not have this performance drop, because the HP version did not use pread/pwrite calls. Also note that the problem only affects systems running on top of JFS file systems. Version 2.2.2 Samba can be built to use system calls pread/pwrite, instead of using a combination of lseek (to move the pointer in the file), and read/write. The pread/pwrite calls are fairly new to...

In the C part of the OCaml plugin we created a ‘bytes’ [byte array] and passed it to the OCaml pread method. The plugin is supposed to overwrite the array with the returned data. However if (eg. because of a bug) the plugin does not fill the array then whatever was in the OCaml or possibly even the C heap before the allocation is returned to the client, possibly resulting in a leak of sensitive...

On 4/23/19 10:09 AM, Richard W.M. Jones wrote: > In the C part of the OCaml plugin we created a ‘bytes’ [byte array] > and passed it to the OCaml pread method. The plugin is supposed to > overwrite the array with the returned data. > > However if (eg. because of a bug) the plugin does not fill the array > then whatever was in the OCaml or possibly even the C heap before the > allocation is returned to the client, possibly resultin...

...9;m using full_audit vfs module and I'm seeing a lot of duplicated messages in log file. Why does it happens ? How can I configure de smb.conf not to log duplicated information ? Duplicated log: Jan 4 13:27:50 server smbd_audit: [2015/01/04 13:27:50|semirames|samba-admin|192.168.0.3|setores]|pread|ok|Atendimento/James.txt Jan 4 13:27:50 server smbd_audit: [2015/01/04 13:27:50|semirames|samba-admin|192.168.0.3|setores]|pread|ok|Atendimento/James.txt Jan 4 13:27:50 server smbd_audit: [2015/01/04 13:27:50|semirames|samba-admin|192.168.0.3|setores]|pread|ok|Atendimento/James.txt Jan 4 13:27:5...

...p/inject)& ./nbdkit -f -v -U - \ >> null 1G --filter=retry --filter=noextents --filter=error error-rate=100% \ >> error-file=/tmp/inject --filter=delay rdelay=1 \ >> --run 'qemu-img convert $nbd out.img' >> ... >> nbdkit: null[1]: debug: noextents: pread count=2097152 offset=14680064 >> nbdkit: null[1]: debug: error: pread count=2097152 offset=14680064 >> nbdkit: null[1]: error: injecting EIO error into pread >> nbdkit: null[1]: debug: retry 6: original errno = 5 >> nbdkit: null[1]: debug: could not recover after 5 retries &...

...log file /nmail/noc4/cache/dovecot.index.log seq 2: unexpected end of file while reading header (sync_offset=0) Oct 15 09:40:59 10.0.1.2 dovecot: IMAP(paul at noc4.net): Unexpected eof found when reading file 'UNOPENED' (Errcode: -1) Oct 15 09:40:59 10.0.1.2 dovecot: IMAP(paul at noc4.net): pread() failed with file /nmail/noc4/cache/dovecot.index.log: Success Oct 15 09:40:59 10.0.1.2 dovecot: IMAP(paul at noc4.net): Unexpected eof found when reading file 'UNOPENED' (Errcode: -1) Oct 15 09:40:59 10.0.1.2 dovecot: IMAP(paul at noc4.net): pread() failed with file /nmail/noc4/cache/dove...

When attempting to mount the OCFS2 file system I'm getting the following error message: ocfs2_hb_ctl: Internal logic failure while starting heartbeat mount.ocfs2: Error when attempting to run /sbin/ocfs2_hb_ctl: "Operation not permitted" I followed the steps given in the users_guide: modprobe ocfs2_dlmfs mount -t configfs none /config mount -t ocfs2_dlmfs none /dlm o2cb_ctl

...: http://et.redhat.com/~rjones/libguestfs/recipes.html -------------- next part -------------- >From 81982306dd5e8beb56e193ed69d840a1cb976d62 Mon Sep 17 00:00:00 2001 From: Richard Jones <rjones at redhat.com> Date: Wed, 25 Nov 2009 11:59:20 +0000 Subject: [PATCH 1/2] daemon/Win32: Replace pread on platforms that don't have this function. --- daemon/configure.ac | 1 + daemon/file.c | 20 ++++++++++++++++++++ 2 files changed, 21 insertions(+), 0 deletions(-) diff --git a/daemon/configure.ac b/daemon/configure.ac index 89bd800..e70f05e 100644 --- a/daemon/configure.ac +++...

I sent this to the author of geoip a few days ago and haven''t heard back, yet. Since he may be on vacation or busy, somebody may also hit this problem in the mean time, I figured I''d post the patch + git repo I sent him here. Unicorn users: The pread(2)/pwrite(2) syscalls are very useful for making libraries like this one (that rely on an on-disk database) compatible with preload_app. TokyoCabinet is a great example of a library that''s already compatible with Unicorn+preload_app out-of-the-box. ----- Forwarded message from Eric...

...xtending the curl plugin so it's doing caching as well (essentially what qemu does IIUC). We already have a cache filter so I have two ideas: (1) Modify nbdkit-cache-filter to add a readahead parameter. This would work something like as follows: If the cache does not map any data following a pread request (up to the size of the readahead), then the pread request to the underlying plugin is extended, and the data added to the cache (but not returned upwards). Prefetched data is read from cache as usual. Unfortunately this could slow down all pread requests, since there's no easy way in...

Version 1 was here: https://www.redhat.com/archives/libguestfs/2019-April/msg00144.html Version 2 makes a couple of much larger changes: The OCaml patch changes the API of the pread method so it matches what other language bindings are already doing, ie. get the language plugin to return a newly allocated buffer, check it is long enough, copy out the data. The server patch implements a per-thread buffer for all pread and pwrite calls which is zeroed whenever it is extended to...