[Bug 1335391] Re: etckeeper with git breaks update-manager
Am I then only one thinking that etckeeper should have post-install script to request git user.name and user.email fields to be filled for root if those are missing? I know how to do that manually but I guess random etckeeper user may not know that those are needed and it would be much better user experience to ask for those during etckeeper install. -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to the bug report. https://bugs.launchpad.net/bugs/1335391 Title: etckeeper with git breaks update-manager To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/etckeeper/+bug/1335391/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 1220677] Re: pg_send_query(): Cannot set connection to blocking mode
The justification for this fix is as follows:
- The patch is obviously safe (it does not touch code outside the
functions mentioned in the description and those functions are already
broken)
- The patch affects PostgreSQL library of PHP, no critical
infrastructure or kernel
- The bug may cause loss of user data due to losing database connection.
Actual data loss depends on PHP application code running on top of the
library and may or may not happen in practice.
** Description changed:
- (I think the package should be php5-pgsql but launchpad wants me to use
- php5 for some reason.)
+ [Impact]
pg_send_query() fails because of an implementation error if connection
is done to remote host and query string is long OR transaction is very
- long.
+ long. As a result, pg_send_query() is too unstable to be used at all if
+ the connection is made to any other host but 'localhost'.
The problem is caused by the implementation not following the PostgreSQL
documentation at http://www.postgresql.org/docs/9.1/static/libpq-
async.html#LIBPQ-PQFLUSH
PQflush: [...] After sending any command or data on a nonblocking
connection, call PQflush. [...]
Related PHP Bug: https://bugs.php.net/bug.php?id=65015
Patch:
https://bugs.php.net/patch-display.php?bug_id=65015patch=pg_send_query_flush_buffer.patchrevision=latest
+
+ [Test Case]
+
Test script (from PHP bug):
---
$len = 10; // This may need to be increased, depending on db server.
$sql = select 1 . str_repeat(' ', $len - 8);
$con = pg_connect('host=db-host.example.com dbname=postgres user=postgres
password=password');
pg_send_query($con, $sql);
pg_get_result($con);
---
Note that the test script only fails if host is remote (connected using
TCP/IP).
+
+ [Regression Potential]
+
+ Calling PQFlush() may cause some additional overhead for the cases where
+ flushing does not need to be done (the cases that happen to work as is).
+ The patch only touches functions pg_send_query() and
+ pg_send_query_params(), so any possible regression should affect only
+ those methods. Both these methods suffer from the same issue and are
+ already too broken to be used in production environment, unless the
+ connection is made to 'localhost'.
+
+ The documentation of PQFlush() says Attempts to flush any queued output
+ data to the server. Returns 0 if successful (or if the send queue is
+ empty), -1 if it failed for some reason, or 1 if it was unable to send
+ all the data in the send queue yet (this case can only occur if the
+ connection is nonblocking). Calling PQFlush() should be okay for
+ blocking connections, too. In addition, the referenced patch does not
+ even touch that code. Source: http://www.postgresql.org/docs/9.1/static
+ /libpq-async.html
+
+ [Other Info]
ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: php5-pgsql 5.3.10-1ubuntu3.7
ProcVersionSignature: Ubuntu 3.8.0-27.40~precise3-generic 3.8.13.4
Uname: Linux 3.8.0-27-generic x86_64
ApportVersion: 2.0.1-0ubuntu17.4
Architecture: amd64
Date: Wed Sep 4 15:22:25 2013
InstallationMedia: Ubuntu 12.04.1 LTS Precise Pangolin - Release amd64
(20120823.1)
MarkForUpload: True
SourcePackage: php5
UpgradeStatus: No upgrade log present (probably fresh install)
** Description changed:
[Impact]
pg_send_query() fails because of an implementation error if connection
is done to remote host and query string is long OR transaction is very
long. As a result, pg_send_query() is too unstable to be used at all if
the connection is made to any other host but 'localhost'.
The problem is caused by the implementation not following the PostgreSQL
documentation at http://www.postgresql.org/docs/9.1/static/libpq-
async.html#LIBPQ-PQFLUSH
PQflush: [...] After sending any command or data on a nonblocking
connection, call PQflush. [...]
Related PHP Bug: https://bugs.php.net/bug.php?id=65015
Patch:
https://bugs.php.net/patch-display.php?bug_id=65015patch=pg_send_query_flush_buffer.patchrevision=latest
[Test Case]
Test script (from PHP bug):
---
$len = 10; // This may need to be increased, depending on db server.
$sql = select 1 . str_repeat(' ', $len - 8);
$con = pg_connect('host=db-host.example.com dbname=postgres user=postgres
password=password');
pg_send_query($con, $sql);
pg_get_result($con);
---
Note that the test script only fails if host is remote (connected using
TCP/IP).
[Regression Potential]
- Calling PQFlush() may cause some additional overhead for the cases where
+ Calling PQflush() may cause some additional overhead for the cases where
flushing does not need to be done (the cases that happen to work as is).
The patch only touches functions pg_send_query() and
pg_send_query_params(), so any possible regression should affect only
those methods. Both these methods suffer from the same issue and are
already too broken to be used in production environment,
[Bug 1220677] [NEW] pg_send_query(): Cannot set connection to blocking mode
Public bug reported:
(I think the package should be php5-pgsql but launchpad wants me to use
php5 for some reason.)
pg_send_query() fails because of an implementation error if connection
is done to remote host and query string is long OR transaction is very
long.
The problem is caused by the implementation not following the PostgreSQL
documentation at http://www.postgresql.org/docs/9.1/static/libpq-
async.html#LIBPQ-PQFLUSH
PQflush: [...] After sending any command or data on a nonblocking
connection, call PQflush. [...]
Related PHP Bug: https://bugs.php.net/bug.php?id=65015
Patch:
https://bugs.php.net/patch-display.php?bug_id=65015patch=pg_send_query_flush_buffer.patchrevision=latest
Test script (from PHP bug):
---
$len = 10; // This may need to be increased, depending on db server.
$sql = select 1 . str_repeat(' ', $len - 8);
$con = pg_connect('host=db-host.example.com dbname=postgres user=postgres
password=password');
pg_send_query($con, $sql);
pg_get_result($con);
---
Note that the test script only fails if host is remote (connected using
TCP/IP).
ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: php5-pgsql 5.3.10-1ubuntu3.7
ProcVersionSignature: Ubuntu 3.8.0-27.40~precise3-generic 3.8.13.4
Uname: Linux 3.8.0-27-generic x86_64
ApportVersion: 2.0.1-0ubuntu17.4
Architecture: amd64
Date: Wed Sep 4 15:22:25 2013
InstallationMedia: Ubuntu 12.04.1 LTS Precise Pangolin - Release amd64
(20120823.1)
MarkForUpload: True
SourcePackage: php5
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: php5 (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug precise
--
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https://bugs.launchpad.net/bugs/1220677
Title:
pg_send_query(): Cannot set connection to blocking mode
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[Bug 1042711] [NEW] php: throw and catch within a destructor causes exception on-the-fly to be lost
Public bug reported:
See the attached test case. The Outer::runInner() throws a test
exception that is supposed to be catched in Outer::run(). However,
before this the destructor of Inner will run as a result of stack
unwinding while returning from Outer::runInner(). This, in turn, causes
the original exception to be lost because Inner::tearDown() throws an
exception which it later catches.
The test case is expected to output (tested official win32 builds 5.3.16
and 5.4.6):
$ php throw-test.php
Catched exception in Inner::tearDown(): test throw inside Inner::tearDown()
#0 /path/to/test.php(6): Inner-tearDown()
#1 /path/to/test.php(29): Inner-__destruct()
#2 /path/to/test.php(29): Outer-runInner()
#3 /path/to/test.php(45): Outer-run()
#4 {main}
OK: Catched exception in Outer::run(): test throw from Outer::runInner()
#0 /path/to/test.php(29): Outer-runInner()
#1 /path/to/test.php(45): Outer-run()
#2 {main}
The version distributed by ubuntu (PHP 5.3.2-1ubuntu4.17) outputs:
$ php throw-test.php
Catched exception in Inner::tearDown(): test throw inside Inner::tearDown()
#0 /home/mira/tmp/throw-test.php(6): Inner-tearDown()
#1 /home/mira/tmp/throw-test.php(29): Inner-__destruct()
#2 /home/mira/tmp/throw-test.php(29): Outer-runInner()
#3 /home/mira/tmp/throw-test.php(45): Outer-run()
#4 {main}
Notice the missing exception in Outer::run(). [Lines have been manually
wrapped for this bug report.]
ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: php5-cli 5.3.2-1ubuntu4.17
ProcVersionSignature: Ubuntu 3.0.0-24.40~lucid1-generic 3.0.38
Uname: Linux 3.0.0-24-generic x86_64
Architecture: amd64
CheckboxSubmission: f0bf0101e3df07a87acfbc156f0db03d
CheckboxSystem: b5acb6c9ca4017b1d44043910f45329d
Date: Tue Aug 28 15:01:35 2012
InstallationMedia: Ubuntu 9.10 Karmic Koala - Release Candidate amd64
(20091020.3)
SourcePackage: php5
** Affects: php5 (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug lucid
--
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https://bugs.launchpad.net/bugs/1042711
Title:
php: throw and catch within a destructor causes exception on-the-fly
to be lost
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[Bug 1042711] Re: php: throw and catch within a destructor causes exception on-the-fly to be lost
** Attachment added: minimal test case https://bugs.launchpad.net/bugs/1042711/+attachment/3280442/+files/throw-test.php -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to php5 in Ubuntu. https://bugs.launchpad.net/bugs/1042711 Title: php: throw and catch within a destructor causes exception on-the-fly to be lost To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/php5/+bug/1042711/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 1042711] Re: php: throw and catch within a destructor causes exception on-the-fly to be lost
It just occurred to me that the test case written a bit differently could be program logic guarding authenticated session. As a result, I'm marking this bug as security but keeping it still public because I'm not aware of real world PHP program suffering from a security issue because of this issue. ** This bug has been flagged as a security vulnerability ** Attachment added: Possible security problem caused by the bug https://bugs.launchpad.net/ubuntu/+source/php5/+bug/1042711/+attachment/3280518/+files/throw-test.php -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to php5 in Ubuntu. https://bugs.launchpad.net/bugs/1042711 Title: php: throw and catch within a destructor causes exception on-the-fly to be lost To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/php5/+bug/1042711/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 459048] Re: php5 crashed with SIGSEGV in _Unwind_ForcedUnwind()
*** This bug is a duplicate of bug 343870 *** https://bugs.launchpad.net/bugs/343870 ** Visibility changed to: Public -- php5 crashed with SIGSEGV in _Unwind_ForcedUnwind() https://bugs.launchpad.net/bugs/459048 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to php5 in ubuntu. -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 343870] Re: php-cli segmentation fault with mysql extension
Checked against lucid inside VirtualBox OSE and could not reproduce the problem anymore. I'm able to reproduce against karmic even inside VirtualBox (and on real hardware, too). -- php-cli segmentation fault with mysql extension https://bugs.launchpad.net/bugs/343870 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to php5 in ubuntu. -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 343870] Re: php-cli segmentation fault with mysql extension
Reproduced with 64 bit Karmic. See bug 459048 for stack trace. -- php-cli segmentation fault with mysql extension https://bugs.launchpad.net/bugs/343870 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to php5 in ubuntu. -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 343870] Re: php-cli segmentation fault with mysql extension
To reproduce in Jaunty (may require at least two physical CPU cores because this is a race condition) simply run the following bash command: $ while true; do php -r ; done (hit CTRL+C after seeing at least one Segmentation fault) The above code repeatedly starts php interpreter and runs no code before exit. At it still causes random segfaults. To reproduce, you must have package php5-mysql or equivalent installed (try php -m | grep mysql to see if you have mysql support in php). I believe that this may cause minor performance hit with the non-CLI php variant also but because the segmentation fault occurs in (transparent) paraller process, the problem is not visible through apache. -- php-cli segmentation fault with mysql extension https://bugs.launchpad.net/bugs/343870 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to php5 in ubuntu. -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 368585] Re: php5 crashed with SIGSEGV in _Unwind_ForcedUnwind()
Probably related (or same as) http://bugs.mysql.com/bug.php?id=42850 That bug is caused by http://bugs.mysql.com/bug.php?id=24507 which is a (not so good) workaround for a glibc bug (http://sourceware.org/bugzilla/show_bug.cgi?id=2644). If the glibc bug is fixed in the currently distributed Ubuntu glibc, then the workaround for MySQL bug 24507 could be removed which in turn fixes the bug 42850. ** Bug watch added: MySQL Bug System #42850 http://bugs.mysql.com/bug.php?id=42850 ** Bug watch added: MySQL Bug System #24507 http://bugs.mysql.com/bug.php?id=24507 ** Bug watch added: Sourceware.org Bugzilla #2644 http://sourceware.org/bugzilla/show_bug.cgi?id=2644 -- php5 crashed with SIGSEGV in _Unwind_ForcedUnwind() https://bugs.launchpad.net/bugs/368585 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to php5 in ubuntu. -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 368585] [NEW] php5 crashed with SIGSEGV in _Unwind_ForcedUnwind()
Public bug reported: Binary package hint: php5 This may be related to bug 259479. Steps to reproduce (with command line php, see the attached file): 1) $ php test.php Seems to be some kind of race condition because it only happens every now and then. Here's a backtrace from a core dump: (gdb) bt #0 0x7f71213564ef in ?? () from /lib/libgcc_s.so.1 #1 0x7f7121356e3b in ?? () from /lib/libgcc_s.so.1 #2 0x7f7121356f43 in _Unwind_ForcedUnwind () from /lib/libgcc_s.so.1 #3 0x7f71239bb710 in __pthread_unwind () from /lib/libpthread.so.0 #4 0x7f71239b5b05 in pthread_exit () from /lib/libpthread.so.0 #5 0x7f7120fa8f3b in ?? () #6 0x in ?? () $ lsb_release -rd Description:Ubuntu 9.04 Release:9.04 $ apt-cache policy php5-cli php5-cli: Installed: 5.2.6.dfsg.1-3ubuntu4.1 Candidate: 5.2.6.dfsg.1-3ubuntu4.1 Version table: *** 5.2.6.dfsg.1-3ubuntu4.1 0 500 http://security.ubuntu.com jaunty-security/main Packages 100 /var/lib/dpkg/status 5.2.6.dfsg.1-3ubuntu4 0 500 http://fi.archive.ubuntu.com jaunty/main Packages $ uname -a Linux semyol-329-b 2.6.28-11-generic #42-Ubuntu SMP Fri Apr 17 01:58:03 UTC 2009 x86_64 GNU/Linux I have a core dump (0.4 MB bzip2'd) if required. ** Affects: php5 (Ubuntu) Importance: Undecided Status: New -- php5 crashed with SIGSEGV in _Unwind_ForcedUnwind() https://bugs.launchpad.net/bugs/368585 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to php5 in ubuntu. -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 368585] Re: php5 crashed with SIGSEGV in _Unwind_ForcedUnwind()
** Attachment added: A simple PHP test file which causes a SIGSEGV sometimes http://launchpadlibrarian.net/26070110/test.php -- php5 crashed with SIGSEGV in _Unwind_ForcedUnwind() https://bugs.launchpad.net/bugs/368585 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to php5 in ubuntu. -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
