Hi,
I am running snapgear-3.4.0 with a preemptive 2.6 kernel, on a
montejade-like board (IXP425 CPU).
I get the following error message when I run some apps that access the
ethernet device, e.g. ifconfig:
BUG: scheduling while atomic: ifconfig/0x00000001/802
[<c0022dc8>] (dump_stack+0x0/0x14) from [<c01dd1c0>]
(schedule+0x60/0x6b8)
[<c01dd160>] (schedule+0x0/0x6b8) from [<c01de5fc>]
(schedule_timeout+0x8c/0xbc)
[<c01de570>] (schedule_timeout+0x0/0xbc) from [<bf01c820>]
(ixOsalMutexLock+0x190/0x1b4 [ixp400])
r8 = C0E07E0C r7 = C021D740 r6 = FFFFA7C2 r5 = C0E06000
r4 = BF0344B8
[<bf01c690>] (ixOsalMutexLock+0x0/0x1b4 [ixp400]) from [<bf00e140>]
(ixEthAccMibIIStatsGetClear+0x1)
r7 = 00E07E0C r6 = 05200000 r5 = BF0344C0 r4 = 00000000
[<bf00e018>] (ixEthAccMibIIStatsGetClear+0x0/0x164 [ixp400]) from
[<bf09da28>] (0xbf09da28)
[<bf09d9d0>] (0xbf09d9d0) from [<c0170e18>] (dev_seq_show+0x4c/0x134)
r6 = C1BAFB60 r5 = C1BAFB60 r4 = C08E4000
[<c0170dcc>] (dev_seq_show+0x0/0x134) from [<c0098328>]
(seq_read+0x26c/0x3a4)
r5 = 0000007B r4 = C08E4000
[<c00980bc>] (seq_read+0x0/0x3a4) from [<c0074244>]
(vfs_read+0xc4/0x17c)
[<c0074180>] (vfs_read+0x0/0x17c) from [<c00745d8>] (sys_read+0x4c/0x74)
r8 = 00000100 r7 = 00000000 r6 = C0E07F78 r5 = C02EF580
r4 = C02EF5A0
[<c007458c>] (sys_read+0x0/0x74) from [<c001dde0>]
(ret_fast_syscall+0x0/0x2c)
r8 = C001DF84 r7 = 00000003 r6 = BE9CFB28 r5 = 00000000
r4 = 0001A008
Is this a know issue? Is it OK or a real bug that needs sorting out?
(I don't have any experience with the preemptive patch - we've been
using kernel 2.4 till now)
Thanks,
- Arnon
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