linux-sg2042/drivers/firewire
Jarod Wilson 6b84236d37 firewire: fw-ohci: plug dma memory leak in AR handler
There's an ugly little memory leak in firewire-ohci's
ar_context_tasklet(), where we're not freeing up some of the memory we
use for each ar_buffer, due to a moving pointer. The problem has been
there for a while, but didn't get noticed until after converting the AR
routines over to use coherent DMA and I started running into I/O stall-
outs with the following message output repeatedly to the console:

PCI-DMA: Out of IOMMU space for 53248 bytes at device 0000:04:09.0

Plugging this leak is definitely necessary, but unfortunately, isn't the
entire answer to my problem, it only increases the amount of I/O that I
can do before hitting the problem. Still working on tracking down the
root cause..

Signed-off-by: Jarod Wilson <jwilson@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2008-03-27 21:01:14 +01:00
..
Kconfig firewire: update Kconfig help text 2008-03-14 00:56:59 +01:00
Makefile firewire: prefix modules with firewire- instead of fw- 2007-05-27 23:21:01 +02:00
fw-card.c firewire: fix crash in automatic module unloading 2008-03-02 12:35:46 +01:00
fw-cdev.c firewire: fix NULL pointer deref. and resource leak 2008-02-21 19:05:56 +01:00
fw-device.c firewire: fix crash in automatic module unloading 2008-03-02 12:35:46 +01:00
fw-device.h firewire: fix crash in automatic module unloading 2008-03-02 12:35:46 +01:00
fw-iso.c firewire: Clean up comment style. 2007-05-10 18:24:13 +02:00
fw-ohci.c firewire: fw-ohci: plug dma memory leak in AR handler 2008-03-27 21:01:14 +01:00
fw-ohci.h firewire: fw-ohci: check for misconfigured bus (phyID == 63) 2007-10-17 00:00:08 +02:00
fw-sbp2.c firewire: fw-sbp2: fix for SYM13FW500 bridge (Datafab disk) 2008-03-14 00:56:59 +01:00
fw-topology.c firewire: warn on fatal condition in topology code 2008-03-14 00:56:59 +01:00
fw-topology.h firewire: a header cleanup 2007-10-17 00:00:09 +02:00
fw-transaction.c firewire: fix panic in handle_at_packet 2008-03-20 18:13:05 +01:00
fw-transaction.h firewire: endianess annotations 2008-03-14 00:56:58 +01:00