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SubjectRe: 2.6.13-rc6-commit-2ba8... crash on firmware load
Petr Vandrovec wrote:
> Hello,
> any idea what happened to the 'cat' uploading my firmware? It seems
> that sysfs's release() crashed because 'to_bin_attr(file->f_dentry)'
> returned pointer to the released memory. Unfortunately there seems
> to be no changes in firmware loader in last week, so it is probably
> some rare race or something like that.
>
> Neither firmware.agent nor firmware itself changed during last 6 months.
> Host seems quite stable after oopses, and DVB-T hardware works as it
> should...
>
> Host is Dual Opteron 246.

FYI, I hoped that recent sysfs's attr fixes would fix this, but git tree as
of now (tree 16b55bd8beb2b56b459db5ef100b881243597f7a) still suffer from
same problem...
Thanks,
Petr

> crc32c: Unknown symbol crc32c_le
> Initializing IPsec netlink socket
> ipcomp6: Unknown symbol xfrm6_tunnel_free_spi
> ipcomp6: Unknown symbol xfrm6_tunnel_alloc_spi
> ipcomp6: Unknown symbol xfrm6_tunnel_spi_lookup
> NET: Registered protocol family 4
> ioctl32(ipx_configure:9636): Unknown cmd fd(3) cmd(000089e1){00} arg(ffffce3b) on socket:[18402]
> Process accounting paused
> ioctl32(matroxset:10258): Unknown cmd fd(3) cmd(40046ef8){00} arg(ffffc9fc) on /dev/fb0
> tda1004x: found firmware revision 0 -- invalid
> tda1004x: waiting for firmware upload (dvb-fe-tda10045.fw)...
> general protection fault: 0000 [1] PREEMPT SMP
> CPU 0
> Modules linked in: ipx p8022 psnap llc esp6 ah6 ipcomp esp4 ah4 xfrm_user wp512 tgr192 tea sha512 michael_mic md4 khazad cast6 cast5 arc4 anubis snd_pcm_oss nfsd exportfs lockd nfs_acl snd_pcm sunrpc snd_timer snd_page_alloc snd_mixer_oss snd binfmt_misc capability commoncap w83627hf_wdt ipv6 ide_cd floppy budget_ci tda1004x firmware_class budget_core dvb_core saa7146 ttpci_eeprom stv0299 i2c_amd756 hw_random i2c_amd8111 shpchp pci_hotplug deflate zlib_deflate zlib_inflate twofish serpent aes_x86_64 blowfish des sha256 sha1 crypto_null af_key eth1394 usblp usb_storage tg3 usbhid ohci1394 ieee1394 ohci_hcd usbcore i810_audio ac97_codec soundcore
> Pid: 10363, comm: cat Not tainted 2.6.13-rc6-2ba8
> RIP: 0010:[<ffffffff801c8c5f>] <ffffffff801c8c5f>{release+95}
> RSP: 0000:ffff81006ede7e88 EFLAGS: 00010256
> RAX: 6b6b6b6b6b6b6b6b RBX: 6b6b6b6b6b6b6b6b RCX: 0000000000000000
> RDX: 0000000000000001 RSI: ffffffff80218290 RDI: 0000000000000001
> RBP: ffff81003a2a7000 R08: 0000000000000000 R09: ffff81007cb6fb90
> R10: 0000000000000001 R11: 0000000000000000 R12: ffff81006ed30af0
> R13: ffff810040009d80 R14: ffff81006ecf7aa0 R15: ffff81006f120b50
> FS: 00002aaaafbf1ba0(0000) GS:ffffffff8064d800(0000) knlGS:00000000556c76c0
> CS: 0010 DS: 002b ES: 002b CR0: 000000008005003b
> CR2: 0000000055621604 CR3: 0000000000101000 CR4: 00000000000006e0
> Process cat (pid: 10363, threadinfo ffff81006ede6000, task ffff81006ed6c820)
> Stack: ffff81006ecf7aa0 ffff81006ecf7aa0 0000000000000008 ffffffff8018ab4b
> ffff810001e0a360 ffff81006ed30af0 ffff81007f796f08 0000000000000000
> 0000000000000001 0000000000000001
> Call Trace:<ffffffff8018ab4b>{__fput+187} <ffffffff801891be>{filp_close+110}
> <ffffffff8013aef3>{put_files_struct+115} <ffffffff8013bd79>{do_exit+505}
> <ffffffff8013c130>{sys_exit_group+0} <ffffffff80123b41>{ia32_sysret+0}
>
>
> Code: ff 88 40 01 00 00 83 3b 02 75 0c 48 8b bb 50 03 00 00 e8 1a
> RIP <ffffffff801c8c5f>{release+95} RSP <ffff81006ede7e88>
> <3>Debug: sleeping function called from invalid context at include/linux/rwsem.h:43
> in_atomic():1, irqs_disabled():1
>
> Call Trace:<ffffffff80135818>{__might_sleep+200} <ffffffff80139929>{profile_task_exit+41}
> <ffffffff8013bb9c>{do_exit+28} <ffffffff8010f715>{die+69}
> <ffffffff801100de>{do_general_protection+270} <ffffffff8010e7c9>{error_exit+0}
> <ffffffff80218290>{kobject_release+0} <ffffffff801c8c5f>{release+95}
> <ffffffff801c8c55>{release+85} <ffffffff8018ab4b>{__fput+187}
> <ffffffff801891be>{filp_close+110} <ffffffff8013aef3>{put_files_struct+115}
> <ffffffff8013bd79>{do_exit+505} <ffffffff8013c130>{sys_exit_group+0}
> <ffffffff80123b41>{ia32_sysret+0}
> Fixing recursive fault but reboot is needed!
> scheduling while atomic: cat/0x00000001/10363
>
> Call Trace:<ffffffff8039593d>{schedule+125} <ffffffff80138fad>{printk+141}
> <ffffffff803977f1>{__down_read+49} <ffffffff80135818>{__might_sleep+200}
> <ffffffff8013bc71>{do_exit+241} <ffffffff8010f715>{die+69}
> <ffffffff801100de>{do_general_protection+270} <ffffffff8010e7c9>{error_exit+0}
> <ffffffff80218290>{kobject_release+0} <ffffffff801c8c5f>{release+95}
> <ffffffff801c8c55>{release+85} <ffffffff8018ab4b>{__fput+187}
> <ffffffff801891be>{filp_close+110} <ffffffff8013aef3>{put_files_struct+115}
> <ffffffff8013bd79>{do_exit+505} <ffffffff8013c130>{sys_exit_group+0}
> <ffffffff80123b41>{ia32_sysret+0}
> tda1004x: firmware upload complete
> tda1004x: found firmware revision 2c -- ok

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