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/proc/fb is not removed during rmmod. Steps to reproduce: modprobe fb rmmod fb ls /proc BUG: unable to handle kernel paging request at ffffffffa0094370 IP: [<ffffffff802b92a1>] proc_get_inode+0x101/0x130 PGD 203067 PUD 207063 PMD 17e758067 PTE 0 Oops: 0000 [1] SMP last sysfs file: /sys/devices/pci0000:00/0000:00:1e.0/0000:05:02.0/resource CPU 1 Modules linked in: nf_conntrack_irc xt_state iptable_filter ipt_MASQUERADE iptable_nat nf_nat nf_conntrack_ipv4 nf_conntrack ip_tables x_tables vfat fat usbhid ehci_hcd uhci_hcd usbcore sr_mod cdrom [last unloaded: fb] Pid: 21205, comm: ls Not tainted 2.6.25-rc8-mm2 #14 RIP: 0010:[<ffffffff802b92a1>] [<ffffffff802b92a1>] proc_get_inode+0x101/0x130 RSP: 0018:ffff81017c4bfc78 EFLAGS: 00010246 RAX: 0000000000008000 RBX: ffff8101787f5470 RCX: 0000000048011ccc RDX: ffffffffa0094320 RSI: ffff810006ad43b0 RDI: ffff81017fc2cc00 RBP: ffff81017e450300 R08: 0000000000000002 R09: ffff81017c5d1000 R10: 0000000000000000 R11: 0000000000000246 R12: ffff81016b903a28 R13: ffff81017f822020 R14: ffff81017c4bfd58 R15: ffff81017f822020 FS: 00007f08e71696f0(0000) GS:ffff81017fc06480(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b CR2: ffffffffa0094370 CR3: 000000017e54a000 CR4: 00000000000006e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Process ls (pid: 21205, threadinfo ffff81017c4be000, task ffff81017de48770) Stack: ffff81017c5d1000 00000000ffffffea ffff81017e450300 ffffffff802bdd1e ffff81017f802258 ffff81017c4bfe48 ffff81016b903a28 ffff81017f822020 ffff81017c4bfd48 ffffffff802b9ba0 ffff81016b903a28 ffff81017f802258 Call Trace: [<ffffffff802bdd1e>] ? proc_lookup_de+0x8e/0x100 [<ffffffff802b9ba0>] ? proc_root_lookup+0x20/0x60 [<ffffffff802882a7>] ? do_lookup+0x1b7/0x210 [<ffffffff8028883d>] ? __link_path_walk+0x53d/0x7f0 [<ffffffff80295eb8>] ? mntput_no_expire+0x28/0x130 [<ffffffff80288b4a>] ? path_walk+0x5a/0xc0 [<ffffffff80288dd3>] ? do_path_lookup+0x83/0x1c0 [<ffffffff80287785>] ? getname+0xe5/0x210 [<ffffffff80289adb>] ? __user_walk_fd+0x4b/0x80 [<ffffffff8028236c>] ? vfs_lstat_fd+0x2c/0x70 [<ffffffff8028bf1e>] ? filldir+0xae/0xf0 [<ffffffff802b92e9>] ? de_put+0x9/0x50 [<ffffffff8029633d>] ? mnt_want_write+0x2d/0x80 [<ffffffff8029339f>] ? touch_atime+0x1f/0x170 [<ffffffff802b9b1d>] ? proc_root_readdir+0x7d/0xa0 [<ffffffff802825e7>] ? sys_newlstat+0x27/0x50 [<ffffffff8028bffb>] ? vfs_readdir+0x9b/0xd0 [<ffffffff8028c0fe>] ? sys_getdents+0xce/0xe0 [<ffffffff8020b39b>] ? system_call_after_swapgs+0x7b/0x80 Code: b7 83 b2 00 00 00 25 00 f0 00 00 3d 00 80 00 00 74 19 48 89 93 f0 00 00 00 48 89 df e8 39 9a fd ff 48 89 d8 48 83 c4 08 5b 5d c3 <48> 83 7a 50 00 48 c7 c0 60 16 45 80 48 c7 c2 40 17 45 80 48 0f RIP [<ffffffff802b92a1>] proc_get_inode+0x101/0x130 RSP <ffff81017c4bfc78> CR2: ffffffffa0094370 ---[ end trace c71hiarjan8ab739 ]--- Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> "Antonino A. Daplas" <adaplas@pol.net> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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|---|---|---|
| .. | ||
| aty | ||
| backlight | ||
| console | ||
| display | ||
| geode | ||
| i810 | ||
| intelfb | ||
| kyro | ||
| logo | ||
| matrox | ||
| mbx | ||
| nvidia | ||
| omap | ||
| pnx4008 | ||
| riva | ||
| savage | ||
| sis | ||
| vermilion | ||
| 68328fb.c | ||
| acornfb.c | ||
| acornfb.h | ||
| amba-clcd.c | ||
| amifb.c | ||
| arcfb.c | ||
| arkfb.c | ||
| asiliantfb.c | ||
| atafb_iplan2p2.c | ||
| atafb_iplan2p4.c | ||
| atafb_iplan2p8.c | ||
| atafb_mfb.c | ||
| atafb_utils.h | ||
| atafb.c | ||
| atafb.h | ||
| atmel_lcdfb.c | ||
| au1100fb.c | ||
| au1100fb.h | ||
| au1200fb.c | ||
| au1200fb.h | ||
| bf54x-lq043fb.c | ||
| bfin-t350mcqb-fb.c | ||
| bt431.h | ||
| bt455.h | ||
| bw2.c | ||
| c2p.c | ||
| c2p.h | ||
| cfbcopyarea.c | ||
| cfbfillrect.c | ||
| cfbimgblt.c | ||
| cg3.c | ||
| cg6.c | ||
| cg14.c | ||
| chipsfb.c | ||
| cirrusfb.c | ||
| clps711xfb.c | ||
| controlfb.c | ||
| controlfb.h | ||
| cyber2000fb.c | ||
| cyber2000fb.h | ||
| cyblafb.c | ||
| dnfb.c | ||
| edid.h | ||
| efifb.c | ||
| epson1355fb.c | ||
| fb_ddc.c | ||
| fb_defio.c | ||
| fb_draw.h | ||
| fb_notify.c | ||
| fb_sys_fops.c | ||
| fbcmap.c | ||
| fbcvt.c | ||
| fbmem.c | ||
| fbmon.c | ||
| fbsysfs.c | ||
| ffb.c | ||
| fm2fb.c | ||
| g364fb.c | ||
| gbefb.c | ||
| gxt4500.c | ||
| hecubafb.c | ||
| hgafb.c | ||
| hitfb.c | ||
| hpfb.c | ||
| igafb.c | ||
| imacfb.c | ||
| imsttfb.c | ||
| imxfb.c | ||
| imxfb.h | ||
| Kconfig | ||
| leo.c | ||
| macfb.c | ||
| macmodes.c | ||
| macmodes.h | ||
| Makefile | ||
| maxinefb.c | ||
| metronomefb.c | ||
| modedb.c | ||
| neofb.c | ||
| offb.c | ||
| output.c | ||
| p9100.c | ||
| platinumfb.c | ||
| platinumfb.h | ||
| pm2fb.c | ||
| pm3fb.c | ||
| pmag-aa-fb.c | ||
| pmag-ba-fb.c | ||
| pmagb-b-fb.c | ||
| ps3fb.c | ||
| pvr2fb.c | ||
| pxafb.c | ||
| pxafb.h | ||
| q40fb.c | ||
| s1d13xxxfb.c | ||
| s3c2410fb.c | ||
| s3c2410fb.h | ||
| s3fb.c | ||
| sa1100fb.c | ||
| sa1100fb.h | ||
| sbuslib.c | ||
| sbuslib.h | ||
| sgivwfb.c | ||
| skeletonfb.c | ||
| sm501fb.c | ||
| sstfb.c | ||
| sticore.h | ||
| stifb.c | ||
| sunxvr500.c | ||
| sunxvr2500.c | ||
| svgalib.c | ||
| syscopyarea.c | ||
| sysfillrect.c | ||
| sysimgblt.c | ||
| tcx.c | ||
| tdfxfb.c | ||
| tgafb.c | ||
| tridentfb.c | ||
| uvesafb.c | ||
| valkyriefb.c | ||
| valkyriefb.h | ||
| vesafb.c | ||
| vfb.c | ||
| vga16fb.c | ||
| vgastate.c | ||
| vt8623fb.c | ||
| w100fb.c | ||
| w100fb.h | ||
| xilinxfb.c | ||