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From: Len Brown <lenb@kernel.org>
Organization: Intel Open Source Technology Center
To: devzero@web.de, linux-acpi@vger.kernel.org
Subject: acpi_ps_execute_method OOPS (Re: some minor issues with 2.6.25-rc6-git7-default)
Date: Tue, 25 Mar 2008 19:37:45 -0400
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On Tuesday 25 March 2008, devzero@web.de wrote:
...
> this one looks more serious (happened with modprobe -r ac),
> because kernel has problems afterwards (cannot load/anload any other module afterwards) 

any idea when this started happening?
Any chance you can snag the output from acpidump
and attach it to a sighting here?:
http://bugzilla.kernel.org/enter_bug.cgi?product=ACPI

thanks,
-Len

> ACPI: ACPI0007:00 is registered as cooling_device0
> ACPI: Processor [CPU0] (supports 8 throttling states)
> BUG: unable to handle kernel paging request at 1b563b0c
> IP: [<c020000f>] acpi_ps_execute_method+0xc4/0x1f9
> *pde = 00000000
> Oops: 0002 [#1] SMP
> Modules linked in: ac(+) sg ahci libata dock sha1_generic michael_mic xcbc crc32c deflate zlib_deflate
> tgr192 wp512 sha512 seed camellia fcrypt pcbc khazad tea arc4 cast6 cast5 xts gf128mul serpent blowfish
> sha256_generic md4 cbc des_generic ecb crypto_blkcipher snd_seq_dummy snd_seq snd_timer snd_seq_device
> snd soundcore parkbd eni suni zatm uPD98402 atm lm70 hwmon ip2 ip2main parport_pc parport 8250_exar_st16c554
> 8250_accent 8250_hub6 8250_boca 8250_fourport ide_generic hpt366 alim15x3 jmicron pdc202xx_new cs5535 aec62xx
> atiixp cs5520 it821x cs5530 hpt34x opti621 trm290 amd74xx ns87415 rz1000 pdc202xx_old via82cxxx triflex cmd64x
> it8213 cy82c693 slc90e66 sc1200 serverworks sis5513 siimage ide_cd_mod cdrom mdacon capifs sctp libcrc32c
> 9pnet_fd 9pnet sunrpc decnet dccp_ipv6 dccp_ipv4 dccp ipv6 fuse ide_pci_generic pcnet32 piix mii intel_agp
> ide_core agpgart ext3 mbcache jbd mptspi mptscsih mptbase scsi_transport_spi sd_mod scsi_mod [last unloaded: sbshc]
> 
> Pid: 14520, comm: modprobe Tainted: P         (2.6.25-rc6-git7-default #1)
> EIP: 0060:[<c020000f>] EFLAGS: 00010206 CPU: 0
> EIP is at acpi_ps_execute_method+0xc4/0x1f9
> EAX: 1b563b0c EBX: 00000000 ECX: 0000ffff EDX: 00000093
> ESI: d41a6240 EDI: c032c726 EBP: 00000000 ESP: df881d98
>  DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068
> Process modprobe (pid: 14520, ti=df880000 task=ddb458f0 task.ti=df880000)
> Stack: ffffffff c032d513 df020c8c df020c84 df021844 d41a6250 d41a6240 c032c726
>        00000000 c01fc910 00001001 d41a6240 e085f44c 00000000 c01fc44b e085f44c
>        df020ce8 d41a6a20 d41a6a20 00000004 e085f44c df020ce8 c01ec145 df881dfc
> Call Trace:
>  [<c01fc910>] acpi_ns_evaluate+0x104/0x1a0
>  [<c01fc44b>] acpi_evaluate_object+0x16f/0x244
>  [<c01ec145>] acpi_evaluate_integer+0x84/0x104
>  [<e085f038>] acpi_ac_get_state+0x22/0x53 [ac]
>  [<e085f20e>] acpi_ac_add+0x63/0x15a [ac]
>  [<c0207f4d>] acpi_device_probe+0x37/0xcd
>  [<c022dd2b>] driver_probe_device+0x9d/0x114
>  [<c022de86>] __driver_attach+0x52/0x87
>  [<c022d36b>] bus_for_each_dev+0x31/0x52
>  [<c022dbde>] driver_attach+0x11/0x13
>  [<c022de34>] __driver_attach+0x0/0x87
>  [<c022da1e>] bus_add_driver+0x91/0x193
>  [<c022e039>] driver_register+0x45/0x9a
>  [<e0863021>] acpi_ac_init+0x21/0x39 [ac]
>  [<c013c1de>] sys_init_module+0x16b6/0x17c9
>  [<c0208280>] acpi_bus_register_driver+0x0/0x38
>  [<c0108a6a>] sys_mmap2+0x62/0x77
>  [<c01059c4>] sysenter_past_esp+0x6d/0xa9
>  =======================
> Code: c0 b8 01 00 00 00 e8 f9 53 00 00 ff 76 08 8b 46 10 50 83 c0 08 50 68 13 d5 32 c0 6a ff 00 00 00 c2 2d 
> c0 68 b0 c2 2d c0 68 fb 00 <00> 00 6a 40 e8 82 2a 00 00 83 c4 24 e8 93 fe ff ff 85 c0 89 c5
> EIP: [<c020000f>] acpi_ps_execute_method+0xc4/0x1f9 SS:ESP 0068:df881d98
> ---[ end trace f8c13e074fc8ef52 ]---
> 
> 
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