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SubjectRe: 2.6.25-rc2-git4 BUG: sysfs_readdir
On Thu, 21 Feb 2008 08:25:53 -0800 Randy Dunlap wrote:

> One of my (x86_64) test machines got this on booting 2.6.25-rc2-git4.

bah. Make that 2.6.25-rc2-git5. :(


> insmod used greatest stack depth: 4144 bytes left
> EXT3-fs: INFO: recovery required on readonly filesystem.
> EXT3-fs: write access will be enabled during recovery.
> kjournald starting. Commit interval 5 seconds
> EXT3-fs: recovery complete.
> EXT3-fs: mounted filesystem with ordered data mode.
> modprobe used greatest stack depth: 3600 bytes left
> BUG: unable to handle kernel NULL pointer dereference at 0000000000000000
> IP: [<ffffffff802d0f16>] sysfs_readdir+0xe0/0x13f
> PGD 0
> Oops: 0000 [1] SMP
> CPU 2
> Modules linked in: cciss ehci_hcd ohci_hcd uhci_hcd
> Pid: 697, comm: udevtrigger Not tainted 2.6.25-rc2-git5 #1
> RIP: 0010:[<ffffffff802d0f16>] [<ffffffff802d0f16>] sysfs_readdir+0xe0/0x13f
> RSP: 0018:ffff81027e8c3eb8 EFLAGS: 00010286
> RAX: 0000000000000000 RBX: ffff81027fb35a50 RCX: ffffffffffffffff
> RDX: 0000000000000020 RSI: 0000000000000000 RDI: 0000000000000000
> RBP: ffff81027e8c3ee8 R08: 000000006765b9c6 R09: 000000000000000a
> R10: 0000000000000000 R11: 0000000000000202 R12: ffff81027e093b40
> R13: ffffffff80299e04 R14: ffff81027e8c3f38 R15: ffffffff80299e04
> FS: 00007ffe6743f710(0000) GS:ffff81027f88c680(0000) knlGS:0000000000000000
> CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> CR2: 0000000000000000 CR3: 000000027e8d6000 CR4: 00000000000006e0
> DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
> DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
> Process udevtrigger (pid: 697, threadinfo ffff81027e8c2000, task ffff81027e5fa000)
> Stack: ffff81027f467280 ffff81027f467338 ffff81027e093b40 00000000fffffffe
> ffff81027f467280 ffff81027f467338 ffff81027e8c3f28 ffffffff80299f33
> ffff81027e8c3f38 00007ffe6765b618 00000000fffffff7 ffff81027e093b40
> Call Trace:
> [<ffffffff80299f33>] vfs_readdir+0x6a/0x9f
> [<ffffffff8029a1b1>] sys_getdents+0x7a/0xc5
> [<ffffffff8020bf5b>] system_call_after_swapgs+0x7b/0x80
>
>
> Code: 00 48 8b 5b 28 eb 04 48 8b 5b 10 48 85 db 74 62 48 8b 43 38 49 39 44 24 38 77 ec eb 40 48 8b 73 18 31 c0 48 83 c9 ff fc 48 89 f7 <f2> ae 4c 89 f7 48 f7 d1 48 8d 41 ff 48 8b 4b 38 89 c2 49 89 4c
> RIP [<ffffffff802d0f16>] sysfs_readdir+0xe0/0x13f
> RSP <ffff81027e8c3eb8>
> CR2: 0000000000000000
> ---[ end trace b4dedabc6a9f743a ]---


---
~Randy

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