Bug#657098: [regression] bttv dvb_bt8xx bt878 hang on boot unless post: drm
On 3/5/2012 2:57 AM, Jonathan Nieder wrote: Hi again. Jonathan Nieder wrote: Harry G. Coin wrote: After installing the above mentioned three from sid, details below, it didn't hang (which maybe meant it worked, or maybe not, could be the kernel change just changed the timing that wee little bit...). Excellent. I wonder if this was fixed by some patch in the area of v2.6.35-rc2~7^2 (module: fix bne2 gave up waiting for init of module libcrc32c, 2010-06-05). If you have a chance to try 2.6.34-1~experimental.2 and 2.6.35~rc4-1~experimental.1 from http://snapshot.debian.org to check that, that would be very useful. Just curious: did the fix stick? Did you get a chance to try any older versions to narrow down the range to search for the fix? I'm curious mostly because it would allow us to fix this in squeeze. If it would be more convenient to have a patch against squeeze to test instead[*], let me know and I'll see what I can find. Thanks, Jonathan [*] instructions for testing patched kernels are at http://kernel-handbook.alioth.debian.org/ch-common-tasks.html#s-common-official Owing to other pressures the next step for me is to set up a new box just to debug this issue. I'll get to this by the end of the day Friday. -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
Bug#657098: [regression] bttv dvb_bt8xx bt878 hang on boot unless post: drm
P.S. Adding just these two lines to modprobe.conf softdep bttv post: lirc softdep dvb_bt8xx post: lirc on the machine whose dmesg I just posted above that failed (gx110) It worked! So clearly a race condition. Racing with what, I don't know. With this working dmesg trace, to compare against the previous bad one (same machine) [0.00] Initializing cgroup subsys cpuset [0.00] Initializing cgroup subsys cpu [0.00] Linux version 2.6.32-5-686 (Debian 2.6.32-39squeeze1) (da...@debian.org) (gcc version 4.3.5 (Debian 4.3.5-4) ) #1 SMP Wed Jan 11 12:29:30 UTC 2012 [0.00] KERNEL supported cpus: [0.00] Intel GenuineIntel [0.00] AMD AuthenticAMD [0.00] NSC Geode by NSC [0.00] Cyrix CyrixInstead [0.00] Centaur CentaurHauls [0.00] Transmeta GenuineTMx86 [0.00] Transmeta TransmetaCPU [0.00] UMC UMC UMC UMC [0.00] BIOS-provided physical RAM map: [0.00] BIOS-e820: - 000a (usable) [0.00] BIOS-e820: 000f - 0010 (reserved) [0.00] BIOS-e820: 0010 - 0feac000 (usable) [0.00] BIOS-e820: 0feac000 - 1000 (reserved) [0.00] BIOS-e820: ffb0 - 0001 (reserved) [0.00] DMI 2.3 present. [0.00] last_pfn = 0xfeac max_arch_pfn = 0x10 [0.00] MTRR default type: uncachable [0.00] MTRR fixed ranges enabled: [0.00] 0-9 write-back [0.00] A-B uncachable [0.00] C-C write-protect [0.00] D-E uncachable [0.00] F-F write-protect [0.00] MTRR variable ranges enabled: [0.00] 0 base 0 mask FF000 write-back [0.00] 1 base 00FF0 mask 0 uncachable [0.00] 2 disabled [0.00] 3 disabled [0.00] 4 disabled [0.00] 5 disabled [0.00] 6 disabled [0.00] 7 disabled [0.00] PAT not supported by CPU. [0.00] initial memory mapped : 0 - 0180 [0.00] init_memory_mapping: -0feac000 [0.00] 00 - 40 page 4k [0.00] 40 - 000fc0 page 2M [0.00] 000fc0 - 000feac000 page 4k [0.00] kernel direct mapping tables up to feac000 @ 7000-d000 [0.00] RAMDISK: 0b6ed000 - 0bf40f94 [0.00] ACPI: RSDP 000fd790 00014 (v00 DELL ) [0.00] ACPI: RSDT 000fd7a4 00028 (v01 DELLGX110 0007 ASL 0061) [0.00] ACPI: FACP 000fd7cc 00074 (v01 DELLGX110 0007 ASL 0061) [0.00] ACPI: DSDT fffe6000 017FA (v01 DELLdt_ex 1000 MSFT 010B) [0.00] ACPI: FACS 0feac000 00040 [0.00] 0MB HIGHMEM available. [0.00] 254MB LOWMEM available. [0.00] mapped low ram: 0 - 0feac000 [0.00] low ram: 0 - 0feac000 [0.00] node 0 low ram: - 0feac000 [0.00] node 0 bootmap 2000 - 3fd8 [0.00] (9 early reservations) == bootmem [00 - 000feac000] [0.00] #0 [00 - 001000] BIOS data page == [00 - 001000] [0.00] #1 [001000 - 002000]EX TRAMPOLINE == [001000 - 002000] [0.00] #2 [006000 - 007000] TRAMPOLINE == [006000 - 007000] [0.00] #3 [000100 - 00014cccf4]TEXT DATA BSS == [000100 - 00014cccf4] [0.00] #4 [000b6ed000 - 000bf40f94] RAMDISK == [000b6ed000 - 000bf40f94] [0.00] #5 [09fc00 - 10]BIOS reserved == [09fc00 - 10] [0.00] #6 [00014cd000 - 00014d316c] BRK == [00014cd000 - 00014d316c] [0.00] #7 [007000 - 009000] PGTABLE == [007000 - 009000] [0.00] #8 [002000 - 004000] BOOTMAP == [002000 - 004000] [0.00] Zone PFN ranges: [0.00] DMA 0x - 0x1000 [0.00] Normal 0x1000 - 0xfeac [0.00] HighMem 0xfeac - 0xfeac [0.00] Movable zone start PFN for each node [0.00] early_node_map[2] active PFN ranges [0.00] 0: 0x - 0x00a0 [0.00] 0: 0x0100 - 0xfeac [0.00] On node 0 totalpages: 65100 [0.00] free_area_init_node: node 0, pgdat c13b4860, node_mem_map c14d5000 [0.00] DMA zone: 32 pages used for memmap [0.00] DMA zone: 0 pages reserved [0.00] DMA zone: 3968 pages, LIFO batch:0 [0.00] Normal zone: 478 pages used for memmap [0.00] Normal zone: 60622 pages, LIFO batch:15 [0.00] Using APIC driver default [0.00] ACPI: PM-Timer IO Port: 0x808 [0.00] SMP: Allowing 1 CPUs, 0 hotplug CPUs [0.00] Local APIC disabled by BIOS -- reenabling. [0.00] Found
