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SubjectRe: [1/6] 2.6.21-rc4: known regressions
Adrian Bunk wrote:
> This email lists some known regressions in Linus' tree compared to 2.6.20.

Since I didn't see any mention of this:

I'm seeing an Oops when removing the ohci1394 module:

[ 16.047275] ieee1394: Node removed: ID:BUS[158717321-38:0860] GUID[c033ced600000000]
[ 16.047287] BUG: unable to handle kernel NULL pointer dereference at virtual address 00000094
[ 16.047451] printing eip:
[ 16.047524] c02daf3d
[ 16.047527] *pde = 00000000
[ 16.047603] Oops: 0000 [#1]
[ 16.047676] PREEMPT
[ 16.047788] Modules linked in: backlight ohci1394 parport_pc parport
[ 16.048069] CPU: 0
[ 16.048071] EIP: 0060:[<c02daf3d>] Not tainted VLI
[ 16.048074] EFLAGS: 00010246 (2.6.21-rc4 #35)
[ 16.048298] EIP is at class_device_remove_attrs+0xa/0x30
[ 16.048377] eax: dfd04338 ebx: 00000000 ecx: df655988 edx: 00000000
[ 16.048456] esi: 00000000 edi: dfd04338 ebp: 00000000 esp: df506e38
[ 16.048535] ds: 007b es: 007b fs: 00d8 gs: 0033 ss: 0068
[ 16.048614] Process rmmod (pid: 1455, ti=df506000 task=df6cc0b0 task.ti=df506000)
[ 16.048693] Stack: dfd04338 dfd04340 00000000 c02db02f 00000000 dfd04338 dfd041e4 c0331871
[ 16.049159] 00000000 c02db065 dfd041b0 c0331858 c055006d 0975d589 00000026 0000035c
[ 16.049626] 00000000 c033ced6 00000000 df24c000 c0331879 c02d859f df24c0bc df24c0bc
[ 16.050091] Call Trace:
[ 16.050233] [<c02db02f>] class_device_del+0xcc/0xfa
[ 16.050352] [<c0331871>] __nodemgr_remove_host_dev+0x0/0xb
[ 16.050475] [<c02db065>] class_device_unregister+0x8/0x10
[ 16.050595] [<c0331858>] nodemgr_remove_ne+0x61/0x7a
[ 16.050714] [<c033ced6>] ether1394_header_cache+0x0/0x43
[ 16.050835] [<c0331879>] __nodemgr_remove_host_dev+0x8/0xb
[ 16.050954] [<c02d859f>] device_for_each_child+0x1a/0x3c
[ 16.051073] [<c0331b98>] nodemgr_remove_host+0x30/0x90
[ 16.051192] [<c032f12c>] __unregister_host+0x1a/0xad
[ 16.051311] [<c032ee17>] hl_get_hostinfo+0x5b/0x76
[ 16.051430] [<c032f34a>] highlevel_remove_host+0x21/0x42
[ 16.051549] [<c032ed9d>] hpsb_remove_host+0x37/0x56
[ 16.051668] [<e0869263>] ohci1394_pci_remove+0x44/0x1c7 [ohci1394]
[ 16.051794] [<c027e5b0>] pci_device_remove+0x16/0x35
[ 16.053376] [<c02da6d7>] __device_release_driver+0x6e/0x8b
[ 16.053496] [<c02dab77>] driver_detach+0xa1/0xde
[ 16.053613] [<c02da33f>] bus_remove_driver+0x57/0x75
[ 16.053733] [<c02dabd4>] driver_unregister+0x8/0x13
[ 16.053850] [<c027e732>] pci_unregister_driver+0xc/0x6e
[ 16.053969] [<c0134d56>] sys_delete_module+0x174/0x19a
[ 16.054091] [<c0113cea>] do_page_fault+0x277/0x525
[ 16.054211] [<c0148b0d>] do_munmap+0x193/0x1ac
[ 16.054331] [<c0103d0c>] syscall_call+0x7/0xb
[ 16.054450] =======================
[ 16.054523] Code: ff c3 85 c0 74 08 83 c0 08 e9 9b f8 ea ff b8 ea ff ff ff c3 85 c0 74 08 83 c0 08 e9 b9 db ea ff c3 57 89 c7 56 53 31 db 8b 70 44 <83> be 94 00 00 00 00 75 09 eb 17 89 f8 e8 d7 ff ff ff 89 da 83
[ 16.057248] EIP: [<c02daf3d>] class_device_remove_attrs+0xa/0x30 SS:ESP 0068:df506e38
--
Tobias PGP: http://9ac7e0bc.uguu.de
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