musb_ep_program 835: broken !rx_reinit, ep2 csr 0003

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1

Hi,

Having this issue here with musb on 3.2.41
I am thinking it is a DMA issue so I tried turning off DMA - but still persists.

[ 372.706817] musb_ep_program 835: broken !rx_reinit, ep2 csr 0003
[ 395.703979] musb_ep_program 835: broken !rx_reinit, ep2 csr 0003
[ 499.801940] musb_ep_program 835: broken !rx_reinit, ep2 csr 0003
[ 537.727661] musb_ep_program 835: broken !rx_reinit, ep2 csr 0003
[ 541.687744] musb_ep_program 835: broken !rx_reinit, ep2 csr 0003
[ 636.375091] musb_ep_program 835: broken !rx_reinit, ep2 csr 0003
[ 651.373413] musb_ep_program 835: broken !rx_reinit, ep2 csr 0003
[ 743.495422] musb_host_rx 1615: Rx interrupt with no errors or packet!
[ 767.397094] musb_ep_program 835: broken !rx_reinit, ep2 csr 0003
[ 767.403411] musb_host_rx 1615: Rx interrupt with no errors or packet!
[ 803.354827] musb_ep_program 835: broken !rx_reinit, ep2 csr 0003
[ 803.361297] musb_host_rx 1615: Rx interrupt with no errors or packet!
[ 880.345489] musb_ep_program 835: broken !rx_reinit, ep2 csr 0003
[ 884.383270] musb_ep_program 835: broken !rx_reinit, ep2 csr 0003
[ 884.389587] musb_host_rx 1615: Rx interrupt with no errors or packet!
[ 907.382904] musb_ep_program 835: broken !rx_reinit, ep2 csr 0003
[ 907.389221] musb_host_rx 1615: Rx interrupt with no errors or packet!
[ 984.333099] musb_ep_program 835: broken !rx_reinit, ep2 csr 0003
[ 984.339447] musb_host_rx 1615: Rx interrupt with no errors or packet!
[ 995.367492] musb_ep_program 835: broken !rx_reinit, ep2 csr 0003
[ 995.373962] musb_host_rx 1615: Rx interrupt with no errors or packet!
[ 1025.368225] musb_ep_program 835: broken !rx_reinit, ep2 csr 0003
[ 1171.085876] musb_ep_program 835: broken !rx_reinit, ep2 csr 0003
[ 1228.118988] musb_ep_program 835: broken !rx_reinit, ep2 csr 0003
[ 1228.125335] musb_host_rx 1615: Rx interrupt with no errors or packet!
[ 1245.077880] musb_ep_program 835: broken !rx_reinit, ep2 csr 0003
[ 1245.084197] musb_host_rx 1615: Rx interrupt with no errors or packet!
[ 1253.038909] musb_ep_program 835: broken !rx_reinit, ep2 csr 0003
[ 1253.045227] musb_host_rx 1615: Rx interrupt with no errors or packet!
[ 1485.047973] musb_ep_program 835: broken !rx_reinit, ep2 csr 0003
[ 1485.054321] musb_host_rx 1615: Rx interrupt with no errors or packet!

Any ideas much appreciated!
CJ

2

Seems a weird problem - can’t find much online.
Any ideas at all where I might start looking for a solution?

[ 984.333099] musb_ep_program 835: broken !rx_reinit, ep2 csr 0003
[ 984.339447] musb_host_rx 1615: Rx interrupt with no errors or packet!

Cheers,
CJ

3

I just turned off CGROUP in the kernel as I saw some RT output in dmesg.
It seems to have reduced dramatically the frequency of these errors, though they are still happening.
I’m not familiar with CGROUP and what it does - seemed to me like these errors were maybe caused by bad resource allocation.

Still in the dark though…