Herbert Xu
39d3215774
virtio_net: Make delayed refill more reliable ...
I have seen RX stalls on a machine that experienced a suspected
OOM. After the stall, the RX buffer is empty on the guest side
and there are exactly 16 entries available on the host side. As
the number of entries is less than that required by a maximal
skb, the host cannot proceed.
The guest did not have a refill job scheduled.
My diagnosis is that an OOM had occured, with the delayed refill
job scheduled. The job was able to allocate at least one skb, but
not enough to overcome the minimum required by the host to proceed.
As the refill job would only reschedule itself if it failed completely
to allocate any skbs, this would lead to an RX stall.
The following patch removes this stall possibility by always
rescheduling the refill job until the ring is totally refilled.
Testing has shown that the RX stall no longer occurs whereas
previously it would occur within a day.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Acked-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-01-25 15:51:01 -08:00
Merge branch 'bugzilla-14954' into release
2010-01-20 01:26:22 -05:00
libata: retry FS IOs even if it has failed with AC_ERR_INVALID
2010-01-20 14:25:11 -05:00
Revert "sysdev: fix prototype for memory_sysdev_class show/store functions"
2010-01-20 15:02:13 -08:00
drbd: Allow online resizing of DRBD devices while peer not reachable (needs to be explicitly forced)
2010-01-12 10:02:46 +01:00
Bluetooth: Prevent ill-timed autosuspend in USB driver
2009-12-17 12:12:49 -08:00
tty: fix race in tty_fasync
2010-01-20 15:03:31 -08:00
drivers/cpuidle/governors/menu.c: fix undefined reference to `__udivdi3'
2010-01-11 09:34:07 -08:00
Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx
2009-12-30 13:46:29 -08:00
edac: i5000_edac critical fix panic out of bounds
2010-01-16 12:15:38 -08:00
firewire, ieee1394: update Kconfig help
2009-12-29 19:58:17 +01:00
gpio: adp5588-gpio: new driver for ADP5588 GPIO expanders
2010-01-11 09:34:07 -08:00
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/anholt/drm-intel
2010-01-16 10:44:38 -08:00
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid
2010-01-13 16:10:13 -08:00
Merge branch 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging
2010-01-11 09:45:55 -08:00
i2c: Do not use device name after device_unregister
2010-01-16 20:43:13 +01:00
cpumask: convert drivers/idle/i7300_idle.c to cpumask_var_t
2009-12-17 11:43:25 +10:30
firewire, ieee1394: update Kconfig help
2009-12-29 19:58:17 +01:00
Merge branches 'misc' and 'mlx4' into for-next
2010-01-06 13:16:47 -08:00
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
2010-01-15 14:51:57 -08:00
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
2010-01-12 20:53:29 -08:00
leds: leds-pwm: Set led_classdev max_brightness
2009-12-17 11:42:34 +00:00
lguest: fix bug in setting guest GDT entry
2010-01-04 12:33:33 -08:00
powerpc/macintosh: Make Open Firmware device id constant
2010-01-15 13:26:04 +11:00
DM: Fix device mapper topology stacking
2010-01-11 14:29:20 +01:00
Merge branch 'mantis' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6
2010-01-18 14:07:07 -08:00
i2o: propogate the BKL down into the ioctl method
2010-01-04 12:31:21 -08:00
mfd: Unlock mc13783 before subsystems initialisation, at probe time.
2010-01-18 12:30:28 +01:00
Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6
2009-12-17 16:38:48 -08:00
mfd: tmio_mmc hardware abstraction for CNF area
2010-01-18 12:30:27 +01:00
Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus
2009-12-17 16:38:06 -08:00
virtio_net: Make delayed refill more reliable
2010-01-25 15:51:01 -08:00
parport_pc.c: use correct length in strncmp
2009-12-16 07:20:12 -08:00
PCIe AER: prevent AER injection if hardware masks error reporting
2010-01-04 15:52:49 -08:00
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6
2009-12-30 13:13:24 -08:00
Merge branch 'misc' into release
2010-01-20 01:23:27 -05:00
Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6
2009-12-16 12:33:19 -08:00
pmu_battery: Fix battery full reporting
2009-12-18 03:51:29 +03:00
regulator: wm831x_reg_read() failure unnoticed in wm831x_aldo_get_mode()
2009-12-17 10:27:30 +00:00
rtc_cmos: convert shutdown to new pnp_driver->shutdown
2010-01-11 09:34:07 -08:00
[S390] tape_char: add missing compat_ptr conversion
2010-01-13 20:44:46 +01:00
bbc_envctrl: Clean up properly if kthread_run() fails.
2010-01-04 15:31:10 -08:00
[SCSI] megaraid_sas: remove sysfs poll_mode_io world writeable permissions
2010-01-12 21:12:36 -08:00
fmvj18x_cs: add new id (Panasonic lan & modem card)
2010-01-23 01:08:52 -08:00
Merge branch 'next-spi' of git://git.secretlab.ca/git/linux-2.6
2009-12-17 15:59:05 -08:00
Staging: hv: fix smp problems in the hyperv core code
2010-01-20 15:05:26 -08:00
Merge branch 'misc-2.6.33' into release
2009-12-16 14:22:32 -05:00
USB: isp1362: fix build failure on ARM systems via irq_flags cleanup
2010-01-20 15:24:36 -08:00
revert "drivers/video/s3c-fb.c: fix clock setting for Samsung SoC Framebuffer"
2010-01-16 12:15:40 -08:00
virtio: fix section mismatch warnings
2010-01-16 12:15:39 -08:00
[WATCHDOG] iTCO_wdt: Add Intel Cougar Point and PCH DeviceIDs
2010-01-18 21:39:49 +00:00
xen: fix hang on suspend.
2010-01-13 10:01:35 +00:00
firewire, ieee1394: update Kconfig help
2009-12-29 19:58:17 +01:00
39d3215774