On Tue, 2010-04-13 at 13:20 +0200, Martin Ferrari wrote: > Package: linux-2.6 > Version: 2.6.33-1~experimental.4 > Severity: normal > Tags: experimental > > Firstly, please note that I'm running this inside a Qemu, but I > imagine that it should not change things much. > > I installed 2.6.33 to try out the new improvements regarding network > namespaces, and while creating and killing hundreds of them, I got > many warnings from the kernel that might indicate a bug somewhere. > Please see the log already included by reportbug.
I'm forwarding this to the upstream maintainers. Ben. [...] > [ 6696.035331] ------------[ cut here ]------------ > [ 6696.035334] WARNING: at > /build/mattems-linux-2.6_2.6.33-1~experimental.4-amd64-ieqSsa/linux-2.6-2.6.33-1~experimental.4/debian/build/source_amd64_none/kernel/sysctl.c:1894 > unregister_sysctl_table+0xa6/0xd1() > [ 6696.035336] Hardware name: > [ 6696.035337] Modules linked in: veth loop parport_pc parport snd_pcm > tpm_tis evdev snd_timer i2c_piix4 tpm tpm_bios button processor serio_raw > i2c_core snd soundcore snd_page_alloc pcspkr psmouse ext3 jbd mbcache sg > sr_mod cdrom sd_mod crc_t10dif ata_generic ata_piix libata floppy 8139cp > thermal thermal_sys 8139too mii scsi_mod [last unloaded: veth] > [ 6696.035354] Pid: 9, comm: netns Tainted: G W 2.6.33-2-amd64 #1 > [ 6696.035355] Call Trace: > [ 6696.035357] [<ffffffff8104e303>] ? unregister_sysctl_table+0xa6/0xd1 > [ 6696.035360] [<ffffffff8104e303>] ? unregister_sysctl_table+0xa6/0xd1 > [ 6696.035362] [<ffffffff81046b81>] ? warn_slowpath_common+0x77/0xa3 > [ 6696.035364] [<ffffffff8104e303>] ? unregister_sysctl_table+0xa6/0xd1 > [ 6696.035367] [<ffffffff812b1205>] ? addrconf_ifdown+0x26f/0x2cc > [ 6696.035369] [<ffffffff81247edc>] ? neigh_sysctl_unregister+0x1a/0x31 > [ 6696.035371] [<ffffffff812b1211>] ? addrconf_ifdown+0x27b/0x2cc > [ 6696.035374] [<ffffffff812b2b0c>] ? addrconf_notify+0x714/0x7ea > [ 6696.035376] [<ffffffff811eb2e7>] ? extract_entropy+0x6a/0x125 > [ 6696.035379] [<ffffffff81053aaf>] ? lock_timer_base+0x26/0x4b > [ 6696.035382] [<ffffffff8123951c>] ? skb_dequeue+0x50/0x58 > [ 6696.035384] [<ffffffff812482c8>] ? pneigh_queue_purge+0x25/0x2f > [ 6696.035386] [<ffffffff81249a91>] ? neigh_ifdown+0xba/0xc9 > [ 6696.035389] [<ffffffff81062f6d>] ? notifier_call_chain+0x29/0x4c > [ 6696.035392] [<ffffffff81243662>] ? rollback_registered_many+0xed/0x19c > [ 6696.035394] [<ffffffff8124371f>] ? unregister_netdevice_many+0xe/0x57 > [ 6696.035397] [<ffffffff812438a3>] ? default_device_exit_batch+0x92/0xa3 > [ 6696.035399] [<ffffffff8123e97a>] ? cleanup_net+0xfd/0x1af > [ 6696.035402] [<ffffffff8105bd0d>] ? worker_thread+0x188/0x21d > [ 6696.035404] [<ffffffff8123e87d>] ? cleanup_net+0x0/0x1af > [ 6696.035406] [<ffffffff8105f2d2>] ? autoremove_wake_function+0x0/0x2e > [ 6696.035409] [<ffffffff8105bb85>] ? worker_thread+0x0/0x21d > [ 6696.035411] [<ffffffff8105ee99>] ? kthread+0x79/0x81 > [ 6696.035414] [<ffffffff810098e4>] ? kernel_thread_helper+0x4/0x10 > [ 6696.035416] [<ffffffff8105ee20>] ? kthread+0x0/0x81 > [ 6696.035418] [<ffffffff810098e0>] ? kernel_thread_helper+0x0/0x10 > [ 6696.035419] ---[ end trace ef7b93cb006e989e ]--- [...] -- Ben Hutchings Once a job is fouled up, anything done to improve it makes it worse.
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