Alexander Sotnikov wrote: some quick update and previous message beautification changed DVB card for other brand and got BUG call this time [ 668.944003] BUG: soft lockup - CPU#0 stuck for 61s! [cx88[0] dvb:1252] [ 668.944003] Modules linked in: af_packet dvb_bt8xx dst bt878 bttv firmware_class compat_ioctl32 v4l2_common cx88_dvb cx88_vp3054_i2c cx8802 cx88xx videodev v4l1_compat ir_common i2c_algo_bit tveeprom btcx_risc videobuf_dma_sg videobuf_dvb videobuf_core cx24123 i2c_core dvb_core unix ipv6 [ 668.944003] [ 668.944003] Pid: 1252, comm: cx88[0] dvb Not tainted (2.6.26.1 #6) [ 668.944003] EIP: 0060:[<dc84c643>] EFLAGS: 00000246 CPU: 0 [ 668.944003] EIP is at dvb_net_ts_callback+0x973/0xbf0 [dvb_core] [ 668.944003] EAX: 00000001 EBX: 00000000 ECX: dbba2d80 EDX: dc84cbf0 [ 668.944003] ESI: 00000000 EDI: dbba2946 EBP: daccdf44 ESP: daccdec8 [ 668.944003] DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068 [ 668.944003] CR0: 8005003b CR2: 083c1808 CR3: 1b89b000 CR4: 00000690 [ 668.944003] DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000 [ 668.944003] DR6: ffff0ff0 DR7: 00000400 [ 668.944003] [<dc84568d>] dvb_dmx_swfilter_packet+0x32d/0x370 [dvb_core] [ 668.944003] [<dc846589>] dvb_dmx_swfilter+0xc9/0x140 [dvb_core] [ 668.944003] [<dc81f450>] videobuf_dvb_thread+0xf0/0x160 [videobuf_dvb] [ 668.944003] [<c011a4b6>] ? complete+0x46/0x60 [ 668.944003] [<dc81f360>] ? videobuf_dvb_thread+0x0/0x160 [videobuf_dvb] [ 668.944003] [<c01370d2>] kthread+0x42/0x70 [ 668.944003] [<c0137090>] ? kthread+0x0/0x70 [ 668.944003] [<c0104247>] kernel_thread_helper+0x7/0x10 [ 668.944003] ======================= > Hi all > > while creating ULE encapsulation driver for our in house DVB modulator > i found out that i can hard lock DVB receiver with following packet > > //normal arp request in Vlan 4 > 0xff 0xff 0xff 0xff 0xff 0xff 0x00 0xff 0x9e 0x00 0x75 0xfa 0x81 0x00 0x00 0x04 > 0x08 0x06 0x00 0x01 0x08 0x00 0x06 0x04 0x00 0x01 0x00 0xff 0x9e 0x00 0x75 0xfa > 0x0a 0x00 0x01 0x10 0xff 0xff 0xff 0xff 0xff 0xff 0x01 0x01 0x01 0x01 > > //same encapsulated in ULE headers with NPA <0x02 0x00 0x00 0x00 0x00 0x01> > > 0x00 0x38 0x00 0x01 0x02 0x00 0x00 0x00 0x00 0x01 0xff 0xff 0xff 0xff 0xff 0xff > 0x00 0xff 0x9e 0x00 0x75 0xfa 0x81 0x00 0x00 0x04 0x08 0x06 0x00 0x01 0x08 0x00 > 0x06 0x04 0x00 0x01 0x00 0xff 0x9e 0x00 0x75 0xfa 0x0a 0x00 0x01 0x10 0xff 0xff > 0xff 0xff 0xff 0xff 0x01 0x01 0x01 0x01 0x76 0x42 0x10 0x42 > > > //all above in 188 B TS frame > > TSD START ------------------- > 0x47 0x51 0x11 0x13 0x00 0x00 0x38 0x00 0x01 0x02 0x00 0x00 0x00 0x00 0x01 0xff > 0xff 0xff 0xff 0xff 0xff 0x00 0xff 0x9e 0x00 0x75 0xfa 0x81 0x00 0x00 0x04 0x08 > 0x06 0x00 0x01 0x08 0x00 0x06 0x04 0x00 0x01 0x00 0xff 0x9e 0x00 0x75 0xfa 0x0a > 0x00 0x01 0x10 0xff 0xff 0xff 0xff 0xff 0xff 0x01 0x01 0x01 0x01 0x76 0x42 0x10 > 0x42 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff > 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff > 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff > 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff > 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff > 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff > 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff > 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff > TSD END --------------------- > > > packets w/o VLAN tag or w/o NPA set work perfectly (kernel > version 2.6.26.1 stock drivers) > any pointers where to look for problem are welcome > > Alexander > _______________________________________________ linux-dvb mailing list linux-dvb@xxxxxxxxxxx http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb
