Messages in this thread | | | Date | Mon, 03 Feb 2014 14:04:40 -0600 | From | Larry Finger <> | Subject | Kernel WARNING splat in 3.14-rc1 |
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On my freshly built 3.14-rc1 kernel, I get the following new warning splat from slub:
[ 69.008845] ------------[ cut here ]------------ [ 69.008861] WARNING: CPU: 0 PID: 1578 at mm/slub.c:1007 deactivate_slab+0x4bb/0x520() [ 69.008863] Modules linked in: rfcomm nfs fscache af_packet lockd sunrpc bnep rtl8723be arc4 rtl8723_common b43 rtl_pci rtlwifi mac80211 cfg80211 btusb bl uetooth powernow_k8 kvm_amd kvm snd_hda_intel snd_hda_codec bcma snd_hwdep r852 sdhci_pci sdhci snd_pcm sr_mod snd_seq ssb cdrom forcedeth sm_common pcspkr s nd_timer serio_raw snd_seq_device snd nand mtd mmc_core rfkill ata_generic pata_amd nand_ids nand_bch bch nand_ecc 6lowpan_iphc soundcore btcoexist r592 ac v ideo memstick button battery sg dm_mod autofs4 thermal processor thermal_sys hwmon [ 69.008934] CPU: 0 PID: 1578 Comm: akonadi_newmail Not tainted 3.14.0-rc1-wl+ #60 [ 69.008936] Hardware name: Hewlett-Packard HP Pavilion dv2700 Notebook PC/30D6, BIOS F.27 11/27/2008 [ 69.008939] 0000000000000009 ffff880085ab1cd0 ffffffff815ee4a0 0000000000000000 [ 69.008945] ffff880085ab1d08 ffffffff8104e768 ffffea0001ee69c0 ffff8800bb401800 [ 69.008950] 0000000000000000 ffff8800bb400c80 0000000000000002 ffff880085ab1d18 [ 69.008956] Call Trace: [ 69.008965] [<ffffffff815ee4a0>] dump_stack+0x4d/0x6f [ 69.008971] [<ffffffff8104e768>] warn_slowpath_common+0x78/0xa0 [ 69.008976] [<ffffffff8104e845>] warn_slowpath_null+0x15/0x20 [ 69.008980] [<ffffffff8118581b>] deactivate_slab+0x4bb/0x520 [ 69.008985] [<ffffffff81183429>] ? new_slab+0x1f9/0x300 [ 69.008989] [<ffffffff815ebe57>] __slab_alloc+0x34d/0x4f5 [ 69.008994] [<ffffffff81185a6b>] ? kmem_cache_alloc+0x18b/0x1c0 [ 69.008999] [<ffffffff810770d1>] ? prepare_creds+0x21/0x1a0 [ 69.009003] [<ffffffff810770d1>] ? prepare_creds+0x21/0x1a0 [ 69.009007] [<ffffffff81185a6b>] kmem_cache_alloc+0x18b/0x1c0 [ 69.009011] [<ffffffff810770d1>] prepare_creds+0x21/0x1a0 [ 69.009016] [<ffffffff8119f955>] SyS_access+0x35/0x1f0 [ 69.009019] [<ffffffff815fe8a2>] system_call_fastpath+0x16/0x1b [ 69.009019] ---[ end trace c63f75644bfb030a ]---
There is a similar warning for my other CPU as well. The warning comes from "lockdep_assert_held(&n->list_lock);".
If needed, I can bisect this issue.
Larry
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