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Subject2.6.25-rc2-git4 BUG: sysfs_readdir
One of my (x86_64) test machines got this on booting 2.6.25-rc2-git4.

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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