Re: [Qemu-devel] network usage causes kernel warning/stack-dump in virtual Linux host

[Rolf Fokkens <rolf.fokkens@wanadoo.nl>]

Sorry - immidiately after being absolutely sure about this, the same 
problem also occured with rtl8139 emulation. Well, it's an issue anyhow.

Rolf

Rolf Fokkens wrote:
> On both qemu (no-kqemu) and qemu-kvm (no-kvm or with kvm) release 
> 0.9.0 the following happens when using ne2000 (default) emulation:
>
> UG: waring at kernel/softirq.c:138/local_bh_enable() (Not tainted)
> [<c042b0cf>] local_bh_enable+    /0x92
> [..........] cond_resched_sof    +0x2c/0x42
> [..........] release_sock+0x4f/0 9d
> [..........] inet_stream_connect+0x116/0x1ff
> [..........] autoremove_wake_function+0x0/0x35
> [..........] sys_connect+0x82/0xad
> [..........] d_instantiate+0x5c/ x60
> [..........] sock_attach_fd+0x70/0xcf
> [..........] selinux_file_alloc_security+0x1f/0x40
> [..........] get_empty_filp+0x99/0x151
> [..........] __sock_create+0x16e/0x1a8
> [..........] fd_install+0x1e/0x47
> [..........] sock_map_fd+0x41/0x47
> [..........] sys_socketcall+0xac/0x261
> [..........] syscall_call+0x7/0xb
>
> The virtual host runs fedora 7, kernel-2.6.21-1.3194.fc7. When using 
> windows-XP as a virtual host a network hang also occurs, but I have no 
> details about it.
>
> The mentioned problems (for both Linux and Windows XP) do not occur 
> when using rtl8139 emulation.
>
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