Hi Stefan, On Sat, Aug 03, 2024 at 06:08:52PM +0200, Stefan Lippers-Hollmann wrote: > On 2024-08-03, Sean Young wrote: > > On Thu, Aug 01, 2024 at 04:51:46PM +0200, Stefan Lippers-Hollmann wrote: > > > Hi > > > > > > On 2024-07-30, Greg Kroah-Hartman wrote: > > > > 6.10-stable review patch. If anyone has any objections, please let me know. > > > > > > > > ------------------ > > > > > > > > From: Zheng Yejian <zhengyejian1@xxxxxxxxxx> > > > > > > > > [ Upstream commit 2052138b7da52ad5ccaf74f736d00f39a1c9198c ] > > > > > > > > Infinite log printing occurs during fuzz test: > > > > > > > > rc rc1: DViCO FusionHDTV DVB-T USB (LGZ201) as ... > > > > ... > > > > dvb-usb: schedule remote query interval to 100 msecs. > > > > dvb-usb: DViCO FusionHDTV DVB-T USB (LGZ201) successfully initialized ... > > > > dvb-usb: bulk message failed: -22 (1/0) > > > > dvb-usb: bulk message failed: -22 (1/0) > > > > dvb-usb: bulk message failed: -22 (1/0) > > > > ... > > > > dvb-usb: bulk message failed: -22 (1/0) > > > > > > > > Looking into the codes, there is a loop in dvb_usb_read_remote_control(), > > > > that is in rc_core_dvb_usb_remote_init() create a work that will call > > > > dvb_usb_read_remote_control(), and this work will reschedule itself at > > > > 'rc_interval' intervals to recursively call dvb_usb_read_remote_control(), > > > > see following code snippet: > > > [...] > > > > > > This patch, as part of v6.10.3-rc3 breaks my TeVii s480 dual DVB-S2 > > > card, reverting just this patch from v6.10-rc3 fixes the situation > > > again (a co-installed Microsoft Xbox One Digital TV DVB-T2 Tuner > > > keeps working). > > > > Thanks for reporting this ... > > > > So looking at the commit, it must be that one of the usb endpoints is > > neither a send/receiver bulk endpoint. Would you mind sending a lusb -v > > of the device, I think something like: > > > > lsusb -v -d 9022:d482 > > > > Should do it, or -d 9022::d481 > > It doesn't show up as 9022:d482 or 9022:d481, but as two 9022:d660. > > system 1, raptor-lake: > > # lsusb -v -d 9022:d660 > > Bus 001 Device 003: ID 9022:d660 TeVii Technology Ltd. DVB-S2 S660 -snip- > Endpoint Descriptor: > bLength 7 > bDescriptorType 5 > bEndpointAddress 0x82 EP 2 IN > bmAttributes 2 > Transfer Type Bulk > Synch Type None > Usage Type Data > wMaxPacketSize 0x0200 1x 512 bytes > bInterval 1 > Endpoint Descriptor: > bLength 7 > bDescriptorType 5 > bEndpointAddress 0x81 EP 1 IN > bmAttributes 2 > Transfer Type Bulk > Synch Type None > Usage Type Data > wMaxPacketSize 0x0002 1x 2 bytes > bInterval 0 I don't think this drivers uses the bulk endpoint, and it is missing the corresponding out bulk endpoint. Please could you test the patch below please - that would be very helpful in narrowing down this issue. Thank you! Sean
