Messages in this thread Patch in this message |  | | | Date | Sun, 17 Oct 2004 09:36:14 +0200 | | Subject | rc4-mm1 and pwc-unofficial: kernel BUG and scheduling while atomic | | From | Norbert Preining <> |
Hi Luc, hi Andrew, hi list!
I tried to get the unofficial pwc modules from http://www.saillard.org:8080/pwc/ to work with 2.6.9-rc4-mm1. After fixing the following two things: --- pwc-if.c.orig 2004-09-27 01:31:42.000000000 +0200 +++ pwc-if.c 2004-10-17 09:28:26.000000000 +0200 @@ -932,7 +932,7 @@ if (urb != 0) { if (pdev->iso_init) { Trace(TRACE_MEMORY, "Unlinking URB %p\n", urb); - usb_unlink_urb(urb); + usb_kill_urb(urb); } Trace(TRACE_MEMORY, "Freeing URB\n"); usb_free_urb(urb); @@ -1618,7 +1618,7 @@ pos = (unsigned long)pdev->image_data; while (size > 0) { page = kvirt_to_pa(pos); - if (remap_page_range(vma, start, page, PAGE_SIZE, PAGE_SHARED)) + if (remap_pfn_range(vma, start, page, PAGE_SIZE, PAGE_SHARED)) return -EAGAIN; start += PAGE_SIZE; the module compiled and loaded without problem, but when starting gnomemeeting I get the following kernel BUG and scheduling while atomic:
pwc Philips webcam module version 9.0.2-unofficial loaded. pwc Supports Philips PCA645/646, PCVC675/680/690, PCVC720[40]/730/740/750 & PCVC830/840. pwc Also supports the Askey VC010, various Logitech Quickcams, Samsung MPC-C10 and MPC-C30, pwc the Creative WebCam 5 & Pro Ex, SOTEC Afina Eye and Visionite VCS-UC300 and VCS-UM100. pwc Philips PCVC680K (Vesta Pro) USB webcam detected. pwc Registered as /dev/video0. usbcore: registered new driver Philips webcam pwc type = 680 pwc type = 680 pwc set_video_mode(176x144 @ 10, palette 15). pwc decode_size = 2. pwc type = 680 pwc type = 680 pwc set_video_mode(176x144 @ 10, palette 15). pwc decode_size = 2. pwc type = 680 pwc type = 680 pwc set_video_mode(176x144 @ 10, palette 15). pwc decode_size = 2. pwc type = 680 pwc type = 680 pwc set_video_mode(176x144 @ 10, palette 15). pwc decode_size = 2. pwc type = 680 pwc type = 680 pwc set_video_mode(176x144 @ 10, palette 15). pwc decode_size = 2. ------------[ cut here ]------------ kernel BUG at mm/rmap.c:468! invalid operand: 0000 [#1] PREEMPT Modules linked in: pwc snd_usb_audio snd_usb_lib nvidia snd_emu10k1 snd_rawmidi snd_seq_device snd_ac97_codec snd_pcm_oss snd_mixer_oss snd_pcm snd_timer snd_page_alloc snd_util_mem snd_hwdep snd soundcore via686a adm1021 i2c_sensor i2c_isa i2c_viapro i2c_core parport_pc lp parport CPU: 0 EIP: 0060:[<c0145897>] Tainted: P VLI EFLAGS: 00210286 (2.6.9-rc4-mm1) EIP is at page_remove_rmap+0x27/0x40 eax: ffffffff ebx: 00001000 ecx: b4588000 edx: c12a0000 esi: df902624 edi: c12a0000 ebp: 00008000 esp: de18beb4 ds: 007b es: 007b ss: 0068 Process gnomemeeting (pid: 11671, threadinfo=de18a000 task=e40bc0c0) Stack: c013f588 cc027080 00000000 e40bc0c0 c0116090 15000027 b4588000 c041d558 b4988000 cc027b48 b4590000 c041d558 c013f6cf 00008000 00000000 00000065 3b9a9e6f b4588000 cc027b48 b4590000 c041d558 c013f72d 00008000 00000000 Call Trace: [<c013f588>] zap_pte_range+0x128/0x230 [<c0116090>] default_wake_function+0x0/0x10 [<c013f6cf>] zap_pmd_range+0x3f/0x60 [<c013f72d>] unmap_page_range+0x3d/0x70 [<c013f84e>] unmap_vmas+0xee/0x200 [<c0143652>] unmap_region+0x72/0xe0 [<c01438fd>] do_munmap+0xfd/0x150 [<c0143990>] sys_munmap+0x40/0x70 [<c0103fc9>] sysenter_past_esp+0x52/0x71 Code: 00 00 00 00 89 c2 8b 00 f6 c4 08 75 28 83 42 08 ff 0f 98 c0 84 c0 74 11 8b 42 08 40 78 0d 9c 58 fa ff 0d 30 1c 43 c0 50 9d 90 c3 <0f> 0b d4 01 21 f9 31 c0 eb e9 0f 0b d1 01 21 f9 31 c0 eb ce 90 <6>note: gnomemeeting[11671] exited with preempt_count 1 scheduling while atomic: gnomemeeting/0x00000001/11671 [<c03076dd>] schedule+0x4dd/0x4f0 [<c03080cd>] rwsem_down_read_failed+0x8d/0x190 [<c012c78b>] .text.lock.futex+0x7/0xbc [<c012c64e>] do_futex+0x4e/0x80 [<c012c760>] sys_futex+0xe0/0xf0 [<c0119854>] release_console_sem+0xd4/0xe0 [<c0117388>] mm_release+0x98/0xb0 [<c011b2ca>] do_exit+0x7a/0x3f0 [<c01051c0>] do_divide_error+0x0/0x120 [<c0105520>] do_invalid_op+0x0/0xf0 [<c0128c61>] search_exception_tables+0x21/0x30 [<c0105520>] do_invalid_op+0x0/0xf0 [<c010560b>] do_invalid_op+0xeb/0xf0 [<c0145897>] page_remove_rmap+0x27/0x40 [<f0e361a8>] pwc_decompress+0x228/0x2b0 [pwc] [<c0307499>] schedule+0x299/0x4f0 [<c0104a49>] error_code+0x2d/0x38 [<c0145897>] page_remove_rmap+0x27/0x40 [<c013f588>] zap_pte_range+0x128/0x230 [<c0116090>] default_wake_function+0x0/0x10 [<c013f6cf>] zap_pmd_range+0x3f/0x60 [<c013f72d>] unmap_page_range+0x3d/0x70 [<c013f84e>] unmap_vmas+0xee/0x200 [<c0143652>] unmap_region+0x72/0xe0 [<c01438fd>] do_munmap+0xfd/0x150 [<c0143990>] sys_munmap+0x40/0x70 [<c0103fc9>] sysenter_past_esp+0x52/0x71 Thanks a lot for any information to fix this!
Best wishes
Norbert
------------------------------------------------------------------------------- Norbert Preining <preining AT logic DOT at> Technische Universität Wien gpg DSA: 0x09C5B094 fp: 14DF 2E6C 0307 BE6D AD76 A9C0 D2BF 4AA3 09C5 B094 ------------------------------------------------------------------------------- SLUBBERY (n.) The gooey drips of wax that dribble down the sides of a candle so beloved by Italian restaurants with Chianti bottles instead of wallpaper. --- Douglas Adams, The Meaning of Liff - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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