similar to: [nbdkit PATCH] sh: Don't let child inherit SIGPIPE ignored

(I am not on the rsync mailing list, so if you send a response to this message to the list, please be sure to CC me.) I first reported this bug go Red Hat in <URL:https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=65350>. If you run rsync with a subshell through ssh.com's ssh and sshd and then kill the client with ctrl-C, the rsync server process running on the remote machine grows

Hello, I have several systems which I recently updated with yum -y update to all the latest packages. These systems use yum-priorities and use the CentOS (priority 1) EPEL (priority 5) and rpmforge (priority 10) repositories. After the updates, dhcpd stopped working with a SIGPIPE error which occurs shortly after it attempts to fork into the background. I worked around that problem by building

Hello, I've got problems with Samba 3.6.0 up to 3.6.6. Forked smbd processes are closing unexpectedly and sometimes smbd server exits. (In Samba 3.5.16 everything works). When invoke smbd from gdb and turn off SIGPIPE passing (by command "handle SIGPIPE nostop nopass") everything works fine. I found out that SigBlk flag of forked smbd processes in /proc/*/status is:

Hi. I'm writing an article on network backups, and instead of using my old ssh1 software, I decided to go with openssh all the way. I got the hang of the openssh way of doing protocol 2 public key authentication, but ssh is failing to terminate when a pipe is broken. I am ssh-ing to a remote host and doing a cat or zcat of a dump file, then on the localhost, I'm using restore to extract

Dear OpenSSH gurus! ;-) I recently upgraded from "OpenSSH 2.1.1p4" to "OpenSSH 2.3.0p1" on my Linux 2.2.17 box with OpenSSL 0.9.5a (RedHat 7.0). According to the "ChangeLog", there was a change in SIGPIPE handling: | 20000930 | [...] | - (djm) Ignore SIGPIPEs from serverloop to child. Fixes crashes with | very short lived X connections. Bug report from

Hello, We have been running samba v2 for quite some time without any problems. But after the upgrade to samba-3.0.5 some anomalies have come out. I've compiled it with LDAP authentication support; the LDAP server is installed on the same machine and the communication is done via sockets. After working fine for some time, and as usual creating multiple threads from the smbd proccess, it

Hi R-devel, tcltk devel, and sqldf devel, The transcript below shows how loading the tcl/tk library in under R causes subprocesses to ignore SIGPIPE. I am including the developer of the (wonderful) sqldf package since it requires tcltk and you might like to make this dependence optional to the user (at least until this is fixed in tcltk). Am I mistaken in calling this a 'bug'? Any

Not sure if this is a bug, so posting here first. If I run: ?? cnt <- 0L ?? while (TRUE) { ? ? ?? cnt <- cnt + 1L ? ? ?? p <- pipe("echo /dev/stdin > /dev/null", open = "w") ? ? ?? writeLines("foobar", p) ? ? ?? tryCatch(close(p), error = function(e) { print(cnt); stop(e)}) ?? } then once cnt gets to around 650, it fails with: ?? [1] 654 ??

The $tmpdir environment variable is used by the eval and sh plugins to communicate the path to the temporary directory created by the plugin for shell scripts to use for temporary files. Previously we set this environment variable globally (in .load()), but this means the environment variable can be leaked into undesirable places, eg. into the --run script: $ nbdkit sh - --run 'echo

I'm pushing the first one as blatantly obvious. The second one is also simple enough, but not enough of a bug for me to push tonight. The third is something I noticed while working on sh, but is really more about docs vs. plugins in general. There, we could either change the code to match the docs (breaking backwards behavior for a plugin that set .errno_is_preserved=2) [what my patch did],

nmbd has been dying on me occasionally. I'm running mandrake 9.2 with samba3-server-3.0.0-2mdk. We've got our users in ldap but I'd seen this symptom previously when I was using an earlier version of samba that didn't support ldap. There is nothing useful in the logs and a PS shows a nmb process still running. This last time around, I had a ptrace running on both nmbd

Technically, as long as our thread model is SERIALIZE_ALL_REQUESTS, we don't have to be very careful about atomic CLOEXEC on any of the pipes we create for communication with the child. However, the next patch wants to promote sh plugin to parallel when possible, which requires the use of pipe2 to avoid fd leaks. Also, add an assert to ensure that we avoid dup2(n, n) (which would fail to

Andreas, How right you are! Still, I find it curious that in the context of the while(TRUE) loop, I am allowed to do this 653 times, with failure on the 654th attempt. Perhaps there is something asynchronous going on? If I eliminate the looping, it does indeed fail (as expected) on the first attempt to close the pipe. Regards Ben On 12/6/19 2:04 AM, Andreas Kersting wrote: > Hi

On Mon, Aug 14, 2023 at 10:46:05PM +0300, Arseniy Krasnov wrote: > > >On 04.08.2023 17:28, Stefano Garzarella wrote: >> On Fri, Aug 04, 2023 at 03:46:47PM +0300, Arseniy Krasnov wrote: >>> Hi Stefano, >>> >>> On 02.08.2023 10:46, Stefano Garzarella wrote: >>>> On Tue, Aug 01, 2023 at 05:17:26PM +0300, Arseniy Krasnov wrote: >>>>>

On Fri, Aug 04, 2023 at 03:46:47PM +0300, Arseniy Krasnov wrote: >Hi Stefano, > >On 02.08.2023 10:46, Stefano Garzarella wrote: >> On Tue, Aug 01, 2023 at 05:17:26PM +0300, Arseniy Krasnov wrote: >>> POSIX requires to send SIGPIPE on write to SOCK_STREAM socket which was >>> shutdowned with SHUT_WR flag or its peer was shutdowned with SHUT_RD >>> flag.

On Fri, Aug 04, 2023 at 05:34:20PM +0300, Arseniy Krasnov wrote: > > >On 04.08.2023 17:28, Stefano Garzarella wrote: >> On Fri, Aug 04, 2023 at 03:46:47PM +0300, Arseniy Krasnov wrote: >>> Hi Stefano, >>> >>> On 02.08.2023 10:46, Stefano Garzarella wrote: >>>> On Tue, Aug 01, 2023 at 05:17:26PM +0300, Arseniy Krasnov wrote: >>>>>

Hi. I don''t know if this one is known, but I can''t recall seeing anything about it. If it is old news I apologize. I discovered a bug in the inetd that comes with NetKit-B-0-08 and older. If a single SYN is sent to port 13 of the server, inetd will die of Broken Pipe: write(3, "Sun Jan 12 21:50:35 1997\r\n", 26) = -1 EPIPE (Broken pipe) --- SIGPIPE (Broken pipe) ---

On Mon, Aug 14, 2023 at 10:40:17PM +0300, Arseniy Krasnov wrote: > > >On 04.08.2023 18:02, Stefano Garzarella wrote: >> On Fri, Aug 04, 2023 at 05:34:20PM +0300, Arseniy Krasnov wrote: >>> >>> >>> On 04.08.2023 17:28, Stefano Garzarella wrote: >>>> On Fri, Aug 04, 2023 at 03:46:47PM +0300, Arseniy Krasnov wrote: >>>>> Hi Stefano,

setenv() is not async-signal-safe and as such should not be used between fork/exec of a multi-threaded app: if one thread is manipulating the current environment (which may entail obtaining a malloc() mutex) when another thread calls fork(), the resulting child's attempt to use setenv() could deadlock or see a broken environ because the thread owning the lock no longer exists to release it.

On 8/31/23 10:02, Richard W.M. Jones wrote: > > On Wed, Aug 30, 2023 at 05:21:19PM -0500, Eric Blake wrote: >> I hit another transient failure in libnbd CI when a poorly-written >> eval script did not consume all of stdin during .pwrite. As behaving >> as a data sink can be a somewhat reasonable feature of a >> quickly-written sh or eval plugin, we should not be so