Messages in this thread | | | From | "Colin Harrison" <> | Subject | Kernel 2.6.12-rc4 with realtime-preempt-2.6.12-rc4-V0.7.47-03 patch breaks running mplayer | Date | Mon, 16 May 2005 13:41:07 +0100 |
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Hi
As an experiment I built a 2.6.12-rc4 kernel with the realtime-preempt-2.6.12-rc4-V0.7.47-03 patch. Runs fine until I play mplayer (cvs), then I get the following in /var/log/messages.
May 16 12:02:00 chamonix kernel: BUG: mplayer/1659, active lock [d554d49c(d554d480-d554d580)] freed! May 16 12:02:00 chamonix kernel: [check_no_locks_freed+323/466] check_no_locks_freed+0x143/0x1d2 (8) May 16 12:02:00 chamonix kernel: [<c012a376>] check_no_locks_freed+0x143/0x1d2 (8) May 16 12:02:00 chamonix kernel: [kfree+86/368] kfree+0x56/0x170 (60) May 16 12:02:00 chamonix kernel: [<c013c2ea>] kfree+0x56/0x170 (60) May 16 12:02:00 chamonix kernel: [rt_up+204/226] rt_up+0xcc/0xe2 (8) May 16 12:02:00 chamonix kernel: [<c012ca50>] rt_up+0xcc/0xe2 (8) May 16 12:02:00 chamonix kernel: [pg0+576581227/1069986816] fusion_entry_destroy+0xd2/0x11e [fusion] (36) May 16 12:02:00 chamonix kernel: [<e2971e6b>] fusion_entry_destroy+0xd2/0x11e [fusion] (36) May 16 12:02:00 chamonix kernel: [pg0+576585565/1069986816] skirmish_ioctl+0x39/0xde [fusion] (36) May 16 12:02:00 chamonix kernel: [<e2972f5d>] skirmish_ioctl+0x39/0xde [fusion] (36) May 16 12:02:00 chamonix kernel: [do_ioctl+101/150] do_ioctl+0x65/0x96 (16) May 16 12:02:00 chamonix kernel: [<c0161c3d>] do_ioctl+0x65/0x96 (16) May 16 12:02:00 chamonix kernel: [vfs_ioctl+104/474] vfs_ioctl+0x68/0x1da (28) May 16 12:02:00 chamonix kernel: [<c0161df7>] vfs_ioctl+0x68/0x1da (28) May 16 12:02:00 chamonix kernel: [fget_light+131/133] fget_light+0x83/0x85 (8) May 16 12:02:00 chamonix kernel: [<c0151603>] fget_light+0x83/0x85 (8) May 16 12:02:00 chamonix kernel: [sys_ioctl+61/99] sys_ioctl+0x3d/0x63 (20) May 16 12:02:00 chamonix kernel: [<c0161fa6>] sys_ioctl+0x3d/0x63 (20) May 16 12:02:00 chamonix kernel: [sysenter_past_esp+84/117] sysenter_past_esp+0x54/0x75 (24) May 16 12:02:00 chamonix kernel: [<c0102743>] sysenter_past_esp+0x54/0x75 (24) May 16 12:02:00 chamonix kernel: [d554d49c] {(struct semaphore *)(&entry->lock)} May 16 12:02:00 chamonix kernel: .. held by: mplayer: 1659 [d6bccd90, 101] May 16 12:02:00 chamonix kernel: ... acquired at: fusion_entry_destroy+0x95/0x11e [fusion] May 16 12:02:00 chamonix kernel: slab size-256[c14d3680] (256), obj: d554d480 May 16 12:02:00 chamonix kernel: `IRQ 8'[12] is being piggy. need_resched=0, cpu=0 May 16 12:02:00 chamonix kernel: Read missed before next interrupt May 16 12:02:00 chamonix kernel: wow! That was a 23 millisec bump May 16 12:02:00 chamonix kernel: bug in rtc_read(): called in state S_IDLE! May 16 12:02:00 chamonix kernel: `IRQ 8'[12] is being piggy. need_resched=0, cpu=0 May 16 12:02:00 chamonix kernel: Read missed before next interrupt May 16 12:02:01 chamonix kernel: wow! That was a 20 millisec bump etc with last 'piggy?' messages repeating.
More information/testing can be supplied/performed, if anyone is interested? Perhaps this is more an mplayer or fusion problem, and I'm reporting on the wrong list! I am experimenting with mplayer, matroxfb, freevo and fusion, compiling the 2.6.12-rc4 kernel CONFIG_PREEMPT=y. This combination usually runs reliably and gives spectacularly beautiful results.
Thanks Colin Harrison
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