Skip to content

L
linux
Switch branch/tag
  1. 03 Oct, 2005 5 commits
    • Paolo 'Blaisorblade' Giarrusso's avatar
      [PATCH] uml - Fix x86_64 page leak · 38e00d34
      Paolo 'Blaisorblade' Giarrusso authored 
      We were leaking pmd pages when 3_LEVEL_PGTABLES was enabled. This fixes that,
has been well tested and is included in mainline tree. Please include in -stable
as well.
Signed-off-by: default avatarJeff Dike <jdike@addtoit.com>
Signed-off-by: default avatarPaolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: default avatarChris Wright <chrisw@osdl.org>
      38e00d34
    • Julian Anastasov's avatar
      [PATCH] ipvs: ip_vs_ftp breaks connections using persistence · 17d6b7c8
      Julian Anastasov authored 
      	ip_vs_ftp when loaded can create NAT connections with unknown
client port for passive FTP. For such expectations we lookup with
cport=0 on incoming packet but it matches the format of the persistence
templates causing packets to other persistent virtual servers to be
forwarded to real server without creating connection. Later the
reply packets are treated as foreign and not SNAT-ed.

	If the IPVS box serves both FTP and other services (eg. HTTP)
for the time we wait for first packet for the FTP data connections with
unknown client port (there can be many), other HTTP connections
that have nothing common to the FTP conn break, i.e. HTTP client
sends SYN to the virtual IP but the SYN+ACK is not NAT-ed properly
in IPVS box and the client box returns RST to real server IP. I.e.
the result can be 10% broken HTTP traffic if 10% of the time
there are passive FTP connections in connecting state. It hurts
only IPVS connections.

	This patch changes the connection lookup for packets from
clients:

* introduce IP_VS_CONN_F_TEMPLATE connection flag to mark the
connection as template
* create new connection lookup function just for templates - ip_vs_ct_in_get
* make sure ip_vs_conn_in_get hits only connections with
IP_VS_CONN_F_NO_CPORT flag set when s_port is 0. By this way
we avoid returning template when looking for cport=0 (ftp)
Signed-off-by: default avatarJulian Anastasov <ja@ssi.bg>
Signed-off-by: default avatarChris Wright <chrisw@osdl.org>
      17d6b7c8
    • David Stevens's avatar
      [PATCH] fix IPv6 per-socket multicast filtering in exact-match case · 6ce0c8df
      David Stevens authored 
      per-socket multicast filters were not being applied to all sockets
in the case of an exact-match bound address, due to an over-exuberant
"return" in the look-up code. Fix below. IPv4 does not have this problem.

Thanks to Hoerdt Mickael for reporting the bug.
Signed-off-by: default avatarDavid L Stevens <dlstevens@us.ibm.com>
Signed-off-by: default avatarChris Wright <chrisw@osdl.org>
      6ce0c8df
    • Alexander Nyberg's avatar
      [PATCH] Fix fs/exec.c:788 (de_thread()) BUG_ON · 99e56fc6
      Alexander Nyberg authored 
      It turns out that the BUG_ON() in fs/exec.c: de_thread() is unreliable
and can trigger due to the test itself being racy.

de_thread() does
 	while (atomic_read(&sig->count) > count) {
	}
	.....
	.....
	BUG_ON(!thread_group_empty(current));

but release_task does
	write_lock_irq(&tasklist_lock)
	__exit_signal
		(this is where atomic_dec(&sig->count) is run)
	__exit_sighand
	__unhash_process
		takes write lock on tasklist_lock
		remove itself out of PIDTYPE_TGID list
	write_unlock_irq(&tasklist_lock)

so there's a clear (although small) window between the
atomic_dec(&sig->count) and the actual PIDTYPE_TGID unhashing of the
thread.

And actually there is no need for all threads to have exited at this
point, so we simply kill the BUG_ON.

Big thanks to Marc Lehmann who provided the test-case.

Fixes Bug 5170 (http://bugme.osdl.org/show_bug.cgi?id=5170)
Signed-off-by: default avatarAlexander Nyberg <alexn@telia.com>
Cc: Roland McGrath <roland@redhat.com>
Cc: Andrew Morton <akpm@osdl.org>
Cc: Ingo Molnar <mingo@elte.hu>
Acked-by: default avatarAndi Kleen <ak@suse.de>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
Signed-off-by: default avatarChris Wright <chrisw@osdl.org>
      99e56fc6
    • Ivan Kokshaysky's avatar
      [PATCH] yenta oops fix · ef1b2a3b
      Ivan Kokshaysky authored 
      In some cases, especially on modern laptops with a lot of PCI and
cardbus bridges, we're unable to assign correct secondary/subordinate
bus numbers to all cardbus bridges due to BIOS limitations unless
we are using "pci=assign-busses" boot option.
So some cardbus controllers may not have attached subordinate pci_bus
structure, and yenta driver must cope with it - just ignore such cardbus
bridges.

For example, see https://bugzilla.novell.com/show_bug.cgi?id=113778Signed-off-by: default avatarIvan Kokshaysky <ink@jurassic.park.msu.ru>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
Signed-off-by: default avatarChris Wright <chrisw@osdl.org>
      ef1b2a3b
  3. 17 Sep, 2005 12 commits
  5. 10 Sep, 2005 11 commits
  7. 28 Aug, 2005 5 commits
  9. 27 Aug, 2005 7 commits
GitLab Nexedi Edition | About GitLab | About Nexedi | 沪ICP备2021021310号-2 | 沪ICP备2021021310号-7