Messages in this thread | | | Date | Tue, 20 Jan 2004 02:27:35 +0200 (EET) | From | caszonyi@rdslink ... | Subject | Re: Fw: Slab coruption and oops with 2.6.1-mm4 |
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On Mon, 19 Jan 2004, Gerd Knorr wrote:
> > > CONFIG_PREEMPT=y > > > > Bug reproducable with this one turned off? > > Hmm, running -mm4 with CONFIG_PREEMPT now, box loaded with bttv capture > + parallel kernel builds, no problems so far ... >
yes bug is reproduceable with preempt turned off
Transcode uses threads to capture and encode the movie. However i don't know how many threads are allocated for capturing.
I tried to run transcode with only one thread for encoding and one buffer for capturing (option -u 1,1 )
When writing this email (after the oops) i also got this:
MCE: The hardware reports a non fatal, correctable incident occurred on CPU 0. Bank 1: 9400000000000151
> > > Slab corruption: start=c57c2000, len=4096 > ^^^^^^^^ > > > 000: 6e 72 6d 71 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b > > > bttv0: skipped frame. no signal? high irq latency? [main=b030000,o_vbi=b030018,o_field=5378000,rc=537801c] > > Who is this? Is this allocated by bttv? Or someone else corrupts > memory here? > > btcx-risc and video-buf have a "debug=1" insmod option, bttv has > "bttv_debug=1". Those make bttv verbose (*plenty* of log, so better > don't try all three at the same time ...) and also log addresses of > (some) allocated memory blocks. > > btcx-risc calls pci_alloc_consistent() and thus does PAGE_SIZE > allocations, that one likely is a good candidate to start with. >
see atachment this is with btcx-risc and video-buf with debug=1
i tried also with bttv_debug=1 when loadijng bttv module but haven't noticed anything strange. I can send the debug messages from bttv if you want.
> Gerd >
-- "A mouse is a device used to point at the xterm you want to type in". Kim Alm on a.s.r.g 1-0052 registering 1-0053 registering 1-0054 registering 1-0055 registering 1-0056 registering 1-0057 tuner: chip found @ 0xc2 registering 1-0061 bttv0: Avermedia eeprom[0x4011]: tuner=5 radio:no remote control:yes bttv0: using tuner=5 tuner: type set to 5 (Philips PAL_BG (FI1216 and compatibles)) bttv0: i2c: checking for MSP34xx @ 0x80... not found bttv0: i2c: checking for MSP34xx (alternate address) @ 0x88... not found bttv0: i2c: checking for TDA9875 @ 0xb0... not found bttv0: i2c: checking for TDA7432 @ 0x8a... not found request_module: failed /sbin/modprobe -- tvaudio. error = 256 bttv0: registered device video0 bttv0: registered device vbi0 bttv0: PLL: 28636363 => 35468950 .. ok bttv0: add subdevice "remote0" agpgart: Found an AGP 2.0 compliant device at 0000:00:00.0. agpgart: Putting AGP V2 device at 0000:00:00.0 into 4x mode agpgart: Putting AGP V2 device at 0000:01:00.0 into 4x mode atkbd.c: Unknown key released (translated set 2, code 0x7a on isa0060/serio0). atkbd.c: Unknown key released (translated set 2, code 0x7a on isa0060/serio0). btcx: riscmem alloc size=2320 [2] btcx: skips line 0-9999: btcx: riscmem free [1] vbuf: init user [0x43267008+0x6c000 => 109 pages] btcx: riscmem alloc size=3184 [2] btcx: riscmem free [1] btcx: riscmem alloc size=2320 [2] btcx: skips line 0-9999: btcx: riscmem free [1] vbuf: init user [0x43267008+0x6c000 => 109 pages] btcx: riscmem alloc size=3184 [2] btcx: riscmem free [1] vbuf: mmap setup: 32 buffers, 2129920 bytes each vbuf: mmap c9cfc96c: 422fd000-463fd000 pgoff 00000000 bufs 0-31 vbuf: init user [0x42505000+0x208000 => 520 pages] btcx: riscmem alloc size=7820 [2] btcx: riscmem alloc size=7820 [3] vbuf: init user [0x4270d000+0x208000 => 520 pages] btcx: riscmem alloc size=7820 [4] btcx: riscmem alloc size=7820 [5] vbuf: init user [0x42915000+0x208000 => 520 pages] btcx: riscmem alloc size=7820 [6] btcx: riscmem alloc size=7820 [7] vbuf: init user [0x42b1d000+0x208000 => 520 pages] btcx: riscmem alloc size=7820 [8] btcx: riscmem alloc size=7820 [9] vbuf: init user [0x42d25000+0x208000 => 520 pages] btcx: riscmem alloc size=7820 [10] btcx: riscmem alloc size=7820 [11] vbuf: init user [0x42f2d000+0x208000 => 520 pages] btcx: riscmem alloc size=7820 [12] btcx: riscmem alloc size=7820 [13] vbuf: init user [0x43135000+0x208000 => 520 pages] btcx: riscmem alloc size=7820 [14] btcx: riscmem alloc size=7820 [15] vbuf: init user [0x4333d000+0x208000 => 520 pages] btcx: riscmem alloc size=7820 [16] btcx: riscmem alloc size=7820 [17] vbuf: init user [0x43545000+0x208000 => 520 pages] btcx: riscmem alloc size=7820 [18] btcx: riscmem alloc size=7820 [19] vbuf: init user [0x4374d000+0x208000 => 520 pages] btcx: riscmem alloc size=7820 [20] btcx: riscmem alloc size=7820 [21] vbuf: init user [0x43955000+0x208000 => 520 pages] btcx: riscmem alloc size=7820 [22] btcx: riscmem alloc size=7820 [23] vbuf: init user [0x43b5d000+0x208000 => 520 pages] btcx: riscmem alloc size=7820 [24] btcx: riscmem alloc size=7820 [25] vbuf: init user [0x43d65000+0x208000 => 520 pages] btcx: riscmem alloc size=7820 [26] btcx: riscmem alloc size=7820 [27] vbuf: init user [0x43f6d000+0x208000 => 520 pages] btcx: riscmem alloc size=7820 [28] btcx: riscmem alloc size=7820 [29] vbuf: init user [0x44175000+0x208000 => 520 pages] btcx: riscmem alloc size=7820 [30] btcx: riscmem alloc size=7820 [31] vbuf: init user [0x4437d000+0x208000 => 520 pages] btcx: riscmem alloc size=7820 [32] btcx: riscmem alloc size=7820 [33] vbuf: init user [0x44585000+0x208000 => 520 pages] btcx: riscmem alloc size=7820 [34] btcx: riscmem alloc size=7820 [35] vbuf: init user [0x4478d000+0x208000 => 520 pages] btcx: riscmem alloc size=7820 [36] btcx: riscmem alloc size=7820 [37] vbuf: init user [0x44995000+0x208000 => 520 pages] btcx: riscmem alloc size=7820 [38] btcx: riscmem alloc size=7820 [39] vbuf: init user [0x44b9d000+0x208000 => 520 pages] btcx: riscmem alloc size=7820 [40] btcx: riscmem alloc size=7820 [41] vbuf: init user [0x44da5000+0x208000 => 520 pages] btcx: riscmem alloc size=7820 [42] btcx: riscmem alloc size=7820 [43] vbuf: init user [0x44fad000+0x208000 => 520 pages] btcx: riscmem alloc size=7820 [44] btcx: riscmem alloc size=7820 [45] vbuf: init user [0x451b5000+0x208000 => 520 pages] btcx: riscmem alloc size=7820 [46] btcx: riscmem alloc size=7820 [47] vbuf: init user [0x453bd000+0x208000 => 520 pages] btcx: riscmem alloc size=7820 [48] btcx: riscmem alloc size=7820 [49] vbuf: init user [0x455c5000+0x208000 => 520 pages] btcx: riscmem alloc size=7820 [50] btcx: riscmem alloc size=7820 [51] vbuf: init user [0x457cd000+0x208000 => 520 pages] btcx: riscmem alloc size=7820 [52] btcx: riscmem alloc size=7820 [53] vbuf: init user [0x459d5000+0x208000 => 520 pages] btcx: riscmem alloc size=7820 [54] btcx: riscmem alloc size=7820 [55] vbuf: init user [0x45bdd000+0x208000 => 520 pages] btcx: riscmem alloc size=7820 [56] btcx: riscmem alloc size=7820 [57] vbuf: init user [0x45de5000+0x208000 => 520 pages] btcx: riscmem alloc size=7820 [58] btcx: riscmem alloc size=7820 [59] vbuf: init user [0x45fed000+0x208000 => 520 pages] btcx: riscmem alloc size=7820 [60] btcx: riscmem alloc size=7820 [61] vbuf: init user [0x461f5000+0x208000 => 520 pages] btcx: riscmem alloc size=7820 [62] btcx: riscmem alloc size=7820 [63] vbuf: init user [0x422fd000+0x208000 => 520 pages] btcx: riscmem alloc size=7820 [64] btcx: riscmem alloc size=7820 [65] btcx: riscmem free [64] btcx: riscmem free [63] vbuf: init user [0x42505000+0x208000 => 520 pages] btcx: riscmem alloc size=7820 [64] btcx: riscmem alloc size=7820 [65] btcx: riscmem free [64] btcx: riscmem free [63] vbuf: init user [0x4270d000+0x208000 => 520 pages] btcx: riscmem alloc size=7820 [64] btcx: riscmem alloc size=7820 [65] btcx: riscmem free [64] btcx: riscmem free [63] vbuf: init user [0x42915000+0x208000 => 520 pages] btcx: riscmem alloc size=7820 [64] btcx: riscmem alloc size=7820 [65] btcx: riscmem free [64] btcx: riscmem free [63] vbuf: init user [0x42b1d000+0x208000 => 520 pages] btcx: riscmem alloc size=7820 [64] btcx: riscmem alloc size=7820 [65] btcx: riscmem free [64] btcx: riscmem free [63] vbuf: init user [0x42d25000+0x208000 => 520 pages] btcx: riscmem alloc size=7820 [64] btcx: riscmem alloc size=7820 [65] btcx: riscmem free [64] btcx: riscmem free [63] vbuf: init user [0x42f2d000+0x208000 => 520 pages] btcx: riscmem alloc size=7820 [64] btcx: riscmem alloc size=7820 [65] btcx: riscmem free [64] btcx: riscmem free [63] vbuf: init user [0x43135000+0x208000 => 520 pages] btcx: riscmem alloc size=7820 [64] btcx: riscmem alloc size=7820 [65] btcx: riscmem free [64] btcx: riscmem free [63] vbuf: init user [0x4333d000+0x208000 => 520 pages] btcx: riscmem alloc size=7820 [64] btcx: riscmem alloc size=7820 [65] btcx: riscmem free [64] btcx: riscmem free [63] vbuf: init user [0x43545000+0x208000 => 520 pages] btcx: riscmem alloc size=7820 [64] btcx: riscmem alloc size=7820 [65] btcx: riscmem free [64] btcx: riscmem free [63] vbuf: init user [0x4374d000+0x208000 => 520 pages] btcx: riscmem alloc size=7820 [64] btcx: riscmem alloc size=7820 [65] btcx: riscmem free [64] btcx: riscmem free [63] vbuf: init user [0x43955000+0x208000 => 520 pages] btcx: riscmem alloc size=7820 [64] btcx: riscmem alloc size=7820 [65] btcx: riscmem free [64] btcx: riscmem free [63] vbuf: init user [0x43b5d000+0x208000 => 520 pages] btcx: riscmem alloc size=7820 [64] btcx: riscmem alloc size=7820 [65] btcx: riscmem free [64] btcx: riscmem free [63] vbuf: init user [0x43d65000+0x208000 => 520 pages] btcx: riscmem alloc size=7820 [64] btcx: riscmem alloc size=7820 [65] btcx: riscmem free [64] btcx: riscmem free [63] vbuf: init user [0x43f6d000+0x208000 => 520 pages] btcx: riscmem alloc size=7820 [64] btcx: riscmem alloc size=7820 [65] btcx: riscmem free [64] btcx: riscmem free [63] vbuf: init user [0x44175000+0x208000 => 520 pages] btcx: riscmem alloc size=7820 [64] btcx: riscmem alloc size=7820 [65] btcx: riscmem free [64] btcx: riscmem free [63] vbuf: init user [0x4437d000+0x208000 => 520 pages] btcx: riscmem alloc size=7820 [64] btcx: riscmem alloc size=7820 [65] btcx: riscmem free [64] btcx: riscmem free [63] vbuf: init user [0x44585000+0x208000 => 520 pages] btcx: riscmem alloc size=7820 [64] btcx: riscmem alloc size=7820 [65] btcx: riscmem free [64] btcx: riscmem free [63] vbuf: init user [0x4478d000+0x208000 => 520 pages] btcx: riscmem alloc size=7820 [64] btcx: riscmem alloc size=7820 [65] btcx: riscmem free [64] btcx: riscmem free [63] vbuf: init user [0x44995000+0x208000 => 520 pages] btcx: riscmem alloc size=7820 [64] btcx: riscmem alloc size=7820 [65] btcx: riscmem free [64] btcx: riscmem free [63] vbuf: init user [0x44b9d000+0x208000 => 520 pages] btcx: riscmem alloc size=7820 [64] btcx: riscmem alloc size=7820 [65] btcx: riscmem free [64] btcx: riscmem free [63] vbuf: init user [0x44da5000+0x208000 => 520 pages] btcx: riscmem alloc size=7820 [64] btcx: riscmem alloc size=7820 [65] btcx: riscmem free [64] btcx: riscmem free [63] vbuf: init user [0x44fad000+0x208000 => 520 pages] btcx: riscmem alloc size=7820 [64] btcx: riscmem alloc size=7820 [65] btcx: riscmem free [64] btcx: riscmem free [63] vbuf: init user [0x451b5000+0x208000 => 520 pages] btcx: riscmem alloc size=7820 [64] btcx: riscmem alloc size=7820 [65] btcx: riscmem free [64] btcx: riscmem free [63] vbuf: init user [0x453bd000+0x208000 => 520 pages] btcx: riscmem alloc size=7820 [64] btcx: riscmem alloc size=7820 [65] btcx: riscmem free [64] btcx: riscmem free [63] vbuf: init user [0x455c5000+0x208000 => 520 pages] btcx: riscmem alloc size=7820 [64] btcx: riscmem alloc size=7820 [65] btcx: riscmem free [64] btcx: riscmem free [63] vbuf: init user [0x457cd000+0x208000 => 520 pages] btcx: riscmem alloc size=7820 [64] btcx: riscmem alloc size=7820 [65] btcx: riscmem free [64] btcx: riscmem free [63] vbuf: init user [0x459d5000+0x208000 => 520 pages] btcx: riscmem alloc size=7820 [64] btcx: riscmem alloc size=7820 [65] btcx: riscmem free [64] btcx: riscmem free [63] vbuf: init user [0x45bdd000+0x208000 => 520 pages] btcx: riscmem alloc size=7820 [64] btcx: riscmem alloc size=7820 [65] btcx: riscmem free [64] btcx: riscmem free [63] vbuf: init user [0x45de5000+0x208000 => 520 pages] btcx: riscmem alloc size=7820 [64] btcx: riscmem alloc size=7820 [65] btcx: riscmem free [64] btcx: riscmem free [63] vbuf: init user [0x45fed000+0x208000 => 520 pages] btcx: riscmem alloc size=7820 [64] btcx: riscmem alloc size=7820 [65] Unable to handle kernel paging request at virtual address 25262e29 printing eip: d08e5613 *pde = 00000000 Oops: 0000 [#1] DEBUG_PAGEALLOC CPU: 0 EIP: 0060:[<d08e5613>] Not tainted VLI EFLAGS: 00210293 EIP is at videobuf_dma_free+0x33/0xc0 [video_buf] eax: 00000000 ebx: c45a7000 ecx: 00000208 edx: 25262e29 esi: 00000000 edi: c817cf54 ebp: d0a35720 esp: c4135c18 ds: 007b es: 007b ss: 0068 Process transcode (pid: 241, threadinfo=c4134000 task=c41739d0) Stack: d0a35720 c817cf54 c817cf38 d0a35720 d0a24930 c817cf54 c817cf54 00000000 c817cf38 00000000 c4135eec d0a1edf3 d0a35720 c817cf38 00000001 000002d0 00000240 00000004 5a5a5a5a c8f0cdf8 c8f0ce08 5a5a5a5a 5a5a5a5a c8f0ce08 Call Trace: [<d0a24930>] bttv_dma_free+0x60/0xa0 [bttv] [<d0a1edf3>] bttv_do_ioctl+0x403/0x1690 [bttv] [<c011a120>] recalc_task_prio+0x90/0x1a0 [<c0119fd8>] kernel_map_pages+0x28/0x90 [<c011a6dd>] scheduler_tick+0x1d/0x560 [<c0125b96>] update_process_times+0x46/0x60 [<c011a6dd>] scheduler_tick+0x1d/0x560 [<c040d50a>] apic_timer_interrupt+0x1a/0x20 [<c02ac1e0>] __copy_to_user_ll+0x50/0x80 [<c010a71c>] setup_sigcontext+0x10c/0x120 [<c010a83a>] setup_frame+0x10a/0x1e0 [<c031f538>] video_usercopy+0xe8/0x1e0 [<c010a2fc>] restore_sigcontext+0x5c/0x180 [<d0a200be>] bttv_ioctl+0x3e/0x70 [bttv] [<d0a1e9f0>] bttv_do_ioctl+0x0/0x1690 [bttv] [<c0161e85>] sys_ioctl+0xb5/0x230 [<c040d37b>] syscall_call+0x7/0xb
Code: 24 14 8b 5f 14 85 db 74 08 0f 0b f3 00 80 70 8e d0 8b 5f 04 85 db 74 47 8b 4f 18 31 f6 39 ce 7d 2f 8d b4 26 00 00 00 00 8b 14 b3 <8b> 02 a9 00 08 00 00 75 17 8b 42 04 85 c0 74 66 ff 4a 04 0f 94 <7>vbuf: munmap c9cfc96c btcx: riscmem free [64] btcx: riscmem free [63] btcx: riscmem free [62] btcx: riscmem free [61] btcx: riscmem free [60] btcx: riscmem free [59] btcx: riscmem free [58] btcx: riscmem free [57] btcx: riscmem free [56] btcx: riscmem free [55] btcx: riscmem free [54] btcx: riscmem free [53] btcx: riscmem free [52] btcx: riscmem free [51] btcx: riscmem free [50] btcx: riscmem free [49] btcx: riscmem free [48] btcx: riscmem free [47] btcx: riscmem free [46] btcx: riscmem free [45] btcx: riscmem free [44] btcx: riscmem free [43] btcx: riscmem free [42] btcx: riscmem free [41] btcx: riscmem free [40] btcx: riscmem free [39] btcx: riscmem free [38] btcx: riscmem free [37] btcx: riscmem free [36] btcx: riscmem free [35] btcx: riscmem free [34] btcx: riscmem free [33] btcx: riscmem free [32] btcx: riscmem free [31] btcx: riscmem free [30] btcx: riscmem free [29] btcx: riscmem free [28] btcx: riscmem free [27] btcx: riscmem free [26] btcx: riscmem free [25] btcx: riscmem free [24] btcx: riscmem free [23] btcx: riscmem free [22] btcx: riscmem free [21] btcx: riscmem free [20] btcx: riscmem free [19] btcx: riscmem free [18] btcx: riscmem free [17] btcx: riscmem free [16] btcx: riscmem free [15] btcx: riscmem free [14] btcx: riscmem free [13] btcx: riscmem free [12] btcx: riscmem free [11] btcx: riscmem free [10] btcx: riscmem free [9] btcx: riscmem free [8] btcx: riscmem free [7] btcx: riscmem free [6] btcx: riscmem free [5] btcx: riscmem free [4] btcx: riscmem free [3] Unable to handle kernel paging request at virtual address 25262e29 printing eip: d08e5613 *pde = 00000000 Oops: 0000 [#2] DEBUG_PAGEALLOC CPU: 0 EIP: 0060:[<d08e5613>] Not tainted VLI EFLAGS: 00010293 EIP is at videobuf_dma_free+0x33/0xc0 [video_buf] eax: 00000000 ebx: c45a7000 ecx: 00000208 edx: 25262e29 esi: 00000000 edi: c817cf54 ebp: c8837df4 esp: c8b33e2c ds: 007b es: 007b ss: 0068 Process transcode (pid: 225, threadinfo=c8b32000 task=c9a839d0) Stack: c817cf54 c817cf54 c817cf38 d0a35720 d0a24930 c817cf54 c817cf54 00000000 0000001f c9cfc96c c8dbc954 d08e6ac4 d0a35720 c817cf38 cffd0f38 00000282 c8dbc954 c8dbc954 c9234eac c9a839d0 c0146c0d c8dbc954 c89e5bb4 00000300 Call Trace: [<d0a24930>] bttv_dma_free+0x60/0xa0 [bttv] [<d08e6ac4>] videobuf_vm_close+0x94/0xc0 [video_buf] [<c0146c0d>] exit_mmap+0x15d/0x180 [<c011c8cf>] mmput+0x4f/0x90 [<c0120238>] do_exit+0x128/0x310 [<c01204e4>] do_group_exit+0x54/0x80 [<c0128c80>] get_signal_to_deliver+0x1c0/0x300 [<c010adad>] do_signal+0xdd/0x110 [<c01278d0>] kill_proc_info+0x30/0x40 [<c011a120>] recalc_task_prio+0x90/0x1a0 [<c011a120>] recalc_task_prio+0x90/0x1a0 [<c011af6c>] schedule+0x33c/0x540 [<c010ae36>] do_notify_resume+0x56/0x60 [<c040d3c6>] work_notifysig+0x13/0x15
Code: 24 14 8b 5f 14 85 db 74 08 0f 0b f3 00 80 70 8e d0 8b 5f 04 85 db 74 47 8b 4f 18 31 f6 39 ce 7d 2f 8d b4 26 00 00 00 00 8b 14 b3 <8b> 02 a9 00 08 00 00 75 17 8b 42 04 85 c0 74 66 ff 4a 04 0f 94
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