Re: [Bug #13666] WARNING: at mm/page_alloc.c:1743 __alloc_pages_nodemask

Christian Kujau
2009-08-02T20:19:01Z

Hm,

looks like this *is* reproducible. After a reboot, mounting the very
same ext4 filesystem triggers this WARNING again:

[ 165.000603] ------------[ cut here ]------------
[ 165.000726] WARNING: at mm/page_alloc.c:1749 __alloc_pages_nodemask+0x4c4/0x5a0()
[ 165.000853] Hardware name: Lenovo
[ 165.000944] Modules linked in: fuse acpi_cpufreq nfsd lockd nfs_acl auth_rpcgss sunrpc lm75 hwmon b43 usb_storage usb_libusual mac80211 cfg80211 uhci_hcd ehci_hcd tg3 ssb usbcore libphy nls_base
[ 165.002297] Pid: 2789, comm: mount Not tainted 2.6.31-rc4 #1
[ 165.002397] Call Trace:
[ 165.002494] [<c1036dda>] ? warn_slowpath_common+0x7a/0xc0
[ 165.002601] [<c1076be4>] ? __alloc_pages_nodemask+0x4c4/0x5a0
[ 165.002708] [<c1036e40>] ? warn_slowpath_null+0x20/0x40
[ 165.002812] [<c1076be4>] ? __alloc_pages_nodemask+0x4c4/0x5a0
[ 165.002921] [<c106dc72>] ? delayacct_end+0xa2/0xd0
[ 165.003027] [<c1076d41>] ? __get_free_pages+0x21/0x60
[ 165.003132] [<c11f02bd>] ? match_number+0x3d/0xc0
[ 165.003235] [<c1129512>] ? parse_options+0xe2/0x5d0
[ 165.003340] [<c135116b>] ? out_of_line_wait_on_bit+0xbb/0xf0
[ 165.003449] [<c10c6ff8>] ? __wait_on_buffer+0x28/0x50
[ 165.003552] [<c112b5b7>] ? ext4_fill_super+0x457/0x2670
[ 165.003657] [<c11ee136>] ? vsnprintf+0x516/0x820
[ 165.003759] [<c11e7f1d>] ? kobject_get+0x1d/0x40
[ 165.003865] [<c10ef5c7>] ? disk_name+0xd7/0xe0
[ 165.003967] [<c10a37ca>] ? get_sb_bdev+0x15a/0x1a0
[ 165.004107] [<c112b160>] ? ext4_fill_super+0x0/0x2670
[ 165.004216] [<c112822d>] ? ext4_get_sb+0x2d/0x50
[ 165.004315] [<c112b160>] ? ext4_fill_super+0x0/0x2670
[ 165.004419] [<c10a24f8>] ? vfs_kern_mount+0x58/0xd0
[ 165.004522] [<c10a2606>] ? do_kern_mount+0x56/0x120
[ 165.004625] [<c10bb2da>] ? do_mount+0x23a/0x750
[ 165.004727] [<c10b91c1>] ? copy_mount_options+0x61/0x160
[ 165.004831] [<c10bb88f>] ? sys_mount+0x9f/0x100
[ 165.004934] [<c1003304>] ? syscall_call+0x7/0xb
[ 165.005044] ---[ end trace d2227ca6268a916a ]---
[ 165.287930] EXT4-fs (dm-7): barriers enabled

The whole dmesg and proc/meminfo is at:
http://nerdbynature.de/bits/2.6.31-rc4/

Note: "dm-7" is a dm-crypt device, backed by an external disk which is
connected via USB. The filesystem itself seems fine however, nothing
unusual except this warning so far...

Christian.
--
BOFH excuse #174:

Backbone adjustment