reinette chatre wrote:
On Wed, 2010-06-16 at 19:56 -0700, Richard Farina wrote:
The repeated line appears ad infinitum filling my dmesg buffer. This of
hangcheck timer seem to trigger with every large file transfer on my
intel 5100. What would you like me to do to provide a more useful
output as this is currently extremely easy to reproduce. Kernel 2.6.34
using compat-wireless stable 2.6.35-rc2
Thanks,
Rick Farina
phy0: failed to reallocate TX buffer
phy0: failed to reallocate TX buffer
phy0: failed to reallocate TX buffer
phy0: failed to reallocate TX buffer
phy0: failed to reallocate TX buffer
phy0: failed to reallocate TX buffer
phy0: failed to reallocate TX buffer
First mac80211 runs out of memory ... it cannot even allocate enough
memory for a skb header.
net_ratelimit: 22 callbacks suppressed
__alloc_pages_slowpath: 3799 callbacks suppressed
swapper: page allocation failure. order:1, mode:0x4020
Pid: 0, comm: swapper Not tainted 2.6.34-pentoo #5
Call Trace:
<IRQ> [<ffffffff8109cb74>] __alloc_pages_nodemask+0x571/0x5b9
[<ffffffff816732e9>] ? skb_release_data+0xc4/0xc9
[<ffffffffa04701e4>] iwlagn_rx_allocate+0x98/0x25a [iwlagn]
Next driver runs out of memory.
Note that the above are all atomic allocations that fail and should be
able to recover.
Is your system low on memory? Are you running applications that take a
lot of memory? Does your wifi connection drop or otherwise suffer at the
time you see these messages?
I have 4GB of RAM on this system, I often run a VM which wastes like
half that but that still leaves 2GB for linux and I'm running XFCE4 so
not exactly a memory hog. It's possible that firefox leaks ram until I'm
out but that would be a LOT of leak, much more than I usually see.
Yeah, as you may guess these errors cause my wifi connection to slow
drastically. If I had to guess, since this happens when I make a large
file transfer it is likely that something related is leaking RAM. I'm
using wget or axel to download and NFS to dump the files on a NAS. I'll
try to trigger this again and watch memory usage to see if I can find
something other than the driver that could be leaking. Failing that,
what do I need to enable to find a leak in the driver?
Thanks,
Rick Farina
Reinette
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