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RE: [microblaze-uclinux] [BUG] at kernel/softirq.c:144 local_bh_enable()
My understanding is that the bug was fixed in the 6.00b patch. Other
people have certainly had success with 7.00b + patch or 7.10a. Perhaps
you could try one of those versions and report how it goes?
Steve
> -----Original Message-----
> From: owner-microblaze-uclinux@xxxxxxxxxxxxxx
[mailto:owner-microblaze-uclinux@xxxxxxxxxxxxxx] On
> Behalf Of Arun Bhanu
> Sent: Wednesday, May 14, 2008 6:26 PM
> To: microblaze-uclinux@xxxxxxxxxxxxxx
> Subject: [microblaze-uclinux] [BUG] at kernel/softirq.c:144
local_bh_enable()
>
> I'm using a XUPV2P board with PetaLinux-v0.30-rc1. I'm getting the
> following kernel error message. According to other mailing list posts
> this is a known bug.
>
> EDK/ISE version is 9.1i with the latest service packs. Error message
> appears during the first ping to the network interface. Network
> interface and system is still usable after I get error message. I've
> tried building the bit file with "EMAC" with "No DMA", "Simple DMA"
> and "Scatter/Gather DMA" and "EMACLite". All builds result in the same
> bug.
>
> As suggested in some other posts, I've applied the Microblaze 6.00
> hotpatch, but still results in the same bug.
>
> This bug was also reported and discussed in previous months [1] [2].
> 1.
http://www.itee.uq.edu.au/~listarch/microblaze-uclinux/archive/2008/02/m
sg00048.html
> 2.
http://www.itee.uq.edu.au/~listarch/microblaze-uclinux/archive/2008/01/m
sg00015.html
>
> Are there any patches that I can try? BTW, 2.4 kernel doesn't have
> this bug.
>
> Please let me know if you need any other info.
>
> -Arun
>
> # BUG: at kernel/softirq.c:144 local_bh_enable()
>
> Stack:
> 601c5c60 601c5d78 605677dc 605a4800 60108444 60108630 60181ab0
60181ac4
> 00000090 60181aec 60567854 ffffffff 605677dc 00000000 6010949c
00000000
> 00000000 00000000 00000000 601bf4fc 00000000 60109454 00000004
00000000
> Call Trace:
> [<60108444>] neigh_create+0x264/0x4e0
> [<60108630>] neigh_create+0x450/0x4e0
> [<6010949c>] neigh_event_ns+0x90/0xf4
> [<60109454>] neigh_event_ns+0x48/0xf4
> [<60144f74>] arp_process+0x1dc/0x690
> [<60145544>] arp_rcv+0x100/0x134
> [<60039230>] kmem_cache_alloc+0x3c/0x60
> [<600395e8>] cache_alloc_refill+0x394/0x6c4
> [<60039734>] cache_alloc_refill+0x4e0/0x6c4
> [<60102514>] netif_receive_skb+0x220/0x260
> [<600db368>] XEmac_FifoRecv+0x19c/0x258
> [<60102610>] process_backlog+0xbc/0x1a8
> [<600d7060>] FifoRecvHandler+0xa0/0x284
> [<6010278c>] net_rx_action+0x90/0x174
> [<600db5a8>] XEmac_IntrHandlerFifo+0x6c/0x168
> [<6000f850>] __do_softirq2+0x58/0xcc
> [<600d62bc>] xenet_interrupt+0x10/0x28
> [<6000f8e0>] __do_softirq+0x1c/0x30
> [<600274f0>] handle_IRQ_event+0x40/0x9c
> [<6000f924>] do_softirq+0x30/0x4c
> [<600275e8>] __do_IRQ+0x9c/0x124
> [<6000fab0>] irq_exit+0x34/0x48
> [<6000184c>] do_IRQ+0x78/0x98
> [<60001858>] do_IRQ+0x84/0x98
> [<601dac84>] ip_auto_config+0x528/0x7f0
> [<60001e00>] _interrupt+0x110/0x118
> [<601c6000>] _KERNEL_SDA_BASE_+0x0/0x10
> [<6017d0d8>] schedule+0x7fc/0x8b0
> [<6017d0ac>] schedule+0x7d0/0x8b0
> [<601c6000>] _KERNEL_SDA_BASE_+0x0/0x10
> [<6000110c>] cpu_idle+0x2c/0x50
> [<60001124>] cpu_idle+0x44/0x50
> [<6000110c>] cpu_idle+0x2c/0x50
> [<60000080>] rest_init+0x30/0x44
> [<601c6884>] start_kernel+0x358/0x370
> [<60000d44>] machine_halt+0x0/0x20
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