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SubjectRe: 2.6.23-rc2-mm1: rtl8139 inconsistent lock state
Date
Hello,

=================================
[ INFO: inconsistent lock state ]
2.6.23-rc2-mm1 #7
---------------------------------
inconsistent {in-hardirq-W} -> {hardirq-on-W} usage.
ifconfig/5492 [HC0[0]:SC0[0]:HE1:SE1] takes:
(&tp->lock){+...}, at: [<de8706e0>] rtl8139_interrupt+0x27/0x46b [8139too]
{in-hardirq-W} state was registered at:
[<c0138eeb>] __lock_acquire+0x949/0x11ac
[<c01397e7>] lock_acquire+0x99/0xb2
[<c0452ff3>] _spin_lock+0x35/0x42
[<de8706e0>] rtl8139_interrupt+0x27/0x46b [8139too]
[<c0147a5d>] handle_IRQ_event+0x28/0x59
[<c01493ca>] handle_level_irq+0xad/0x10b
[<c0105a13>] do_IRQ+0x93/0xd0
[<c010441e>] common_interrupt+0x2e/0x34
[<c0370d2b>] cpuidle_idle_call+0x74/0x99
[<c01023e7>] cpu_idle+0x87/0x89
[<c044fa24>] rest_init+0x60/0x62
[<c05f8ad5>] start_kernel+0x23a/0x2c5
[<00000000>] 0x0
[<ffffffff>] 0xffffffff
irq event stamp: 1777
hardirqs last enabled at (1777): [<c0169c04>] kfree+0xee/0x105
hardirqs last disabled at (1776): [<c0169b9d>] kfree+0x87/0x105
softirqs last enabled at (1756): [<c03cb7ab>] dev_deactivate+0x86/0xa5
softirqs last disabled at (1754): [<c045300e>] _spin_lock_bh+0xe/0x47

other info that might help us debug this:
1 lock held by ifconfig/5492:
#0: (rtnl_mutex){--..}, at: [<c0451778>] mutex_lock+0x1c/0x1f

stack backtrace:
[<c0104869>] show_trace_log_lvl+0x1a/0x30
[<c01053ad>] show_trace+0x12/0x14
[<c0105515>] dump_stack+0x15/0x17
[<c0136ed9>] print_usage_bug+0x145/0x14f
[<c0137ce7>] mark_lock+0x61f/0x70c
[<c0138ce0>] __lock_acquire+0x73e/0x11ac
[<c01397e7>] lock_acquire+0x99/0xb2
[<c0452ff3>] _spin_lock+0x35/0x42
[<de8706e0>] rtl8139_interrupt+0x27/0x46b [8139too]
[<c01480fd>] free_irq+0x11b/0x146
[<de871d59>] rtl8139_close+0x8a/0x14a [8139too]
[<c03bde63>] dev_close+0x57/0x74
[<c03bce65>] dev_change_flags+0x8e/0x190
[<c03fd37c>] devinet_ioctl+0x4af/0x652
[<c03fdc62>] inet_ioctl+0x56/0x71
[<c03b1dba>] sock_ioctl+0xa5/0x1d4
[<c0178b42>] do_ioctl+0x22/0x71
[<c0178be6>] vfs_ioctl+0x55/0x29e
[<c0178e62>] sys_ioctl+0x33/0x69
[<c01041aa>] sysenter_past_esp+0x5f/0x99
=======================

Regards,

Mariusz
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