#1856: ath5k kmalloc poison overwritten ----------------------------------+----------------------------------------- Reporter: [EMAIL PROTECTED] | Type: defect Status: new | Priority: major Component: ath5k | Version: trunk Keywords: | Patch_attached: 0 ----------------------------------+----------------------------------------- Hi
I got a kmalloc poison warning (well zillions of them) from what appears to be ath5k allocated memory while copying about a Gig of data using the ath5k driver on a AR2413 chip with WEP. This may not be hugely helpful since it's from fedora rawhide's 2.6.25-0.139.rc6.git5.fc9 kernel but I think that is reasonably good at tracking current wireless development so I have chosen "trunk" under version. You can probably check the exact source for that kernel in koji (the fedora buildsystem) as it's probably been replaced on the mirrors already with a newer version... Here's the info from /var/log/messages. Mar 31 08:04:05 sahara kernel: ============================================================================= Mar 31 08:04:05 sahara kernel: BUG kmalloc-4096 (Not tainted): Poison overwritten Mar 31 08:04:05 sahara kernel: ----------------------------------------------------------------------------- Mar 31 08:04:05 sahara kernel: Mar 31 08:04:05 sahara kernel: INFO: 0xc534d100-0xc534d3db. First byte 0x8 instead of 0x6b Mar 31 08:04:05 sahara kernel: INFO: Allocated in ath5k_rxbuf_setup+0x41/0x16a [ath5k] age=7156 cpu=0 pid=2450 Mar 31 08:04:05 sahara kernel: INFO: Freed in skb_release_data+0x8e/0x92 age=7104 cpu=0 pid=2450 Mar 31 08:04:05 sahara kernel: INFO: Slab 0xc11237c0 used=2 fp=0xc534d0f0 flags=0x400040c3 Mar 31 08:04:05 sahara kernel: INFO: Object 0xc534d0f0 @offset=20720 fp=0xc5349030 Mar 31 08:04:05 sahara kernel: Mar 31 08:04:05 sahara kernel: Bytes b4 0xc534d0e0: 92 09 00 00 73 60 0a 00 5a 5a 5a 5a 5a 5a 5a 5a ....s`..ZZZZZZZZ Mar 31 08:04:05 sahara kernel: Object 0xc534d0f0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk Mar 31 08:04:05 sahara kernel: Object 0xc534d100: 08 42 2c 00 00 16 ce 0d 79 41 00 12 0e 0a 2a 5e .B,...<CE>.yA....*^ Mar 31 08:04:05 sahara kernel: Object 0xc534d110: 00 e0 98 d6 04 2c a0 1d e0 4a 4c 00 c5 17 04 b0 .<E0>.<D6>.,..<E0>JL. <C5>..<B0> Mar 31 08:04:05 sahara kernel: Object 0xc534d120: 2f 88 28 bd 96 b0 f0 c5 8d dd 89 81 e6 8e 57 ce /.(<BD>.<B0><F0><C5>. <DD>..<E6>.W<CE> Mar 31 08:04:05 sahara kernel: Object 0xc534d130: d2 df 56 f5 30 36 6e ea 0d d1 b7 c9 42 9b 57 3a <D2><DF>V<F5>06n<EA>.ѷ <C9>B.W: Mar 31 08:04:05 sahara kernel: Object 0xc534d140: 52 64 87 94 bc 15 96 0f 0d 6e c5 e5 91 fb 37 0b Rd..<BC>....n<C5><E5>. <FB>7. Mar 31 08:04:05 sahara kernel: Object 0xc534d150: 22 59 a3 bf a0 c4 69 c4 d9 8e 91 9c 9f 33 07 61 "Y<A3><BF>.<C4>i<C4><D9>....3.a Mar 31 08:04:05 sahara kernel: Object 0xc534d160: fd 9e 23 cf 61 b1 5d 20 b8 e8 20 de 0b 10 36 2a <FD>.#<CF>a<B1>].<B8> <E8>.<DE>..6* Mar 31 08:04:05 sahara kernel: Redzone 0xc534e0f0: bb bb bb bb <BB><BB><BB><BB> Mar 31 08:04:05 sahara kernel: Padding 0xc534e118: 5a 5a 5a 5a 5a 5a 5a 5a ZZZZZZZZ Mar 31 08:04:05 sahara kernel: Pid: 0, comm: swapper Not tainted 2.6.25-0.139.rc6.git5.fc9 #1 Mar 31 08:04:05 sahara kernel: [<c04863d3>] print_trailer+0x111/0x119 Mar 31 08:04:05 sahara kernel: [<c048645c>] check_bytes_and_report+0x81/0xa4 Mar 31 08:04:05 sahara kernel: [<c048654d>] check_object+0xa4/0x184 Mar 31 08:04:05 sahara kernel: [<c04876c6>] __slab_alloc+0x43a/0x53f Mar 31 08:04:05 sahara kernel: [<c0487ab6>] ? kmem_cache_alloc+0x86/0xc4 Mar 31 08:04:05 sahara kernel: [<c0488037>] __kmalloc_track_caller+0x93/0xf8 Mar 31 08:04:05 sahara kernel: [<dea655da>] ? ath5k_rxbuf_setup+0x41/0x16a [ath5k] Mar 31 08:04:05 sahara kernel: [<dea655da>] ? ath5k_rxbuf_setup+0x41/0x16a [ath5k] Mar 31 08:04:05 sahara kernel: [<c05c2d39>] __alloc_skb+0x49/0xf8 Mar 31 08:04:05 sahara kernel: [<dea655da>] ath5k_rxbuf_setup+0x41/0x16a [ath5k] Mar 31 08:04:05 sahara kernel: [<dea67913>] ath5k_tasklet_rx+0x4f0/0x508 [ath5k] Mar 31 08:04:05 sahara kernel: [<c040a042>] ? sched_clock+0x8/0xb Mar 31 08:04:05 sahara kernel: [<c042c7d1>] tasklet_action+0x71/0xd6 Mar 31 08:04:05 sahara kernel: [<c042d0d2>] __do_softirq+0x84/0x10a Mar 31 08:04:05 sahara kernel: [<c0407fde>] do_softirq+0x79/0xda Mar 31 08:04:05 sahara kernel: [<c046495d>] ? handle_fasteoi_irq+0x0/0xb6 Mar 31 08:04:05 sahara kernel: [<c042cc38>] irq_exit+0x44/0x77 Mar 31 08:04:05 sahara kernel: [<c04080eb>] do_IRQ+0xac/0xc5 Mar 31 08:04:05 sahara kernel: [<c0406786>] common_interrupt+0x2e/0x34 Mar 31 08:04:05 sahara kernel: [<c04400d8>] ? clocksource_register+0x40/0x19f Mar 31 08:04:05 sahara kernel: [<c0540f4e>] ? acpi_idle_enter_c1+0xdb/0x127 Mar 31 08:04:05 sahara kernel: [<c05abf79>] cpuidle_idle_call+0x70/0x94 Mar 31 08:04:05 sahara kernel: [<c05abf09>] ? cpuidle_idle_call+0x0/0x94 Mar 31 08:04:05 sahara kernel: [<c0404c97>] cpu_idle+0xc2/0xe2 Mar 31 08:04:05 sahara kernel: [<c062c391>] rest_init+0x49/0x4b Mar 31 08:04:05 sahara kernel: ======================= Mar 31 08:04:05 sahara kernel: FIX kmalloc-4096: Restoring 0xc534d100-0xc534d3db=0x6b Thanks! -- Ticket URL: <http://madwifi.org/ticket/1856> madwifi.org <http://madwifi.org/> Multiband Atheros Driver for Wireless Fidelity ------------------------------------------------------------------------- Check out the new SourceForge.net Marketplace. 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