[mythtv-users] More on that weird mythfrontend 0.19 page fault issue; backtrace included

[Yeechang Lee]

Earlier I wrote in
<URL:http://www.gossamer-threads.com/lists/mythtv/users/183752?search_string=yeechang;#183752>
about my own experiences with an odd page fault issue in mythfrontend
0.19. Now I can report that the exact same thing [1] happens when
exiting a certain HDTV cable recording done in December 2005. It's
possible this has something to do with transcoding, as I did so with
the recording earlier tonight, but given the experience with the tuner
card I don't think so.

[1] Well, I *think* it's the same thing. Same non-instability of the
system, too. Backtrace from dmesg follows:

Bad page state at free_hot_cold_page (in process 'mythfrontend', page c1280d60)
flags:0x80000400 mapping:00000000 mapcount:0 count:0 (Tainted: PF   B)
Backtrace:
 [<c014d91e>] bad_page+0x8c/0xc3     [<c014e21c>] free_hot_cold_page+0x3a/0x126
 [<c01f5c0e>] pci_bus_read_config_dword+0x61/0x6b     [<f96726f7>] nv_vm_free_pages+0xb6/0x10f [nvidia]
 [<f967130a>] nv_free_pages+0x290/0x2b2 [nvidia]     [<f946d2ba>] _nv002097rm+0x4e/0x58 [nvidia]
 [<f946d299>] _nv002097rm+0x2d/0x58 [nvidia]     [<f959b8ab>] _nv004517rm+0x23/0x28 [nvidia]
 [<f944daaa>] _nv007899rm+0x9a/0xd4 [nvidia]     [<f94571ca>] _nv001474rm+0x8e/0x9c [nvidia]
 [<f959b801>] _nv004519rm+0x19/0x40 [nvidia]     [<f9456fb2>] _nv001479rm+0x82/0x190 [nvidia]
 [<f9456ff1>] _nv001479rm+0xc1/0x190 [nvidia]     [<f944fc30>] _nv007916rm+0x40/0x5c [nvidia]
 [<f9473a66>] rm_disable_interrupts+0x42/0x54 [nvidia]     [<f9456254>] _nv001492rm+0x13c/0x260 [nvidia]
 [<f9672d36>] os_acquire_sema+0x57/0x60 [nvidia]     [<f946d10a>] _nv002123rm+0x12/0x18 [nvidia]
 [<f945199b>] _nv002944rm+0x33/0x9c [nvidia]     [<f94519d1>] _nv002944rm+0x69/0x9c [nvidia]
 [<f9474d0d>] _nv001447rm+0x3d/0x5e4 [nvidia]     [<f9474ee3>] _nv001447rm+0x213/0x5e4 [nvidia]
 [<f9473d73>] rm_ioctl+0x23/0x38 [nvidia]     [<c01f1468>] copy_from_user+0x42/0x7a
 [<f966fef1>] nv_kern_ioctl+0x2cf/0x353 [nvidia]     [<c0104629>] irq_entries_start+0x4c1/0x8f8
 [<c017b124>] do_ioctl+0x64/0x6d     [<c017b287>] vfs_ioctl+0x56/0x1c4
 [<c01084cd>] do_syscall_trace+0x1ac/0x1c4     [<c017b452>] sys_ioctl+0x5d/0x6f
 [<c0104035>] syscall_call+0x7/0xb     [<c0104629>] irq_entries_start+0x4c1/0x8f8
Trying to fix it up, but a reboot is needed

-- 
Yeechang Lee <ylee at pobox.com> | +1 650 776 7763 | San Francisco CA US