Package: qemu-kvm Version: 0.12.5+dfsg-5+squeeze6 Severity: important Tags: upstream patch
Hi, it's currently not possible to hotplug NIC's using libvirt and as far as I can tell, it's qemu's fault. When I try to hotplug a NIC I get the following error: internal error unable to send TAP file handle: No file descriptor supplied via SCM_RIGHTS I've been looking around for a while and found that Ubuntu includes a patch to fix this: https://launchpad.net/ubuntu/+source/qemu-kvm/0.12.4+noroms-0ubuntu3 Could this be included in squeeze and lenny-backports? Or do you guys know of another way to hotplug network devices with libvirt? :-) -- Package-specific info: /proc/cpuinfo: processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 30 model name : Intel(R) Xeon(R) CPU X3450 @ 2.67GHz stepping : 5 cpu MHz : 2660.403 cache size : 8192 KB physical id : 0 siblings : 8 core id : 0 cpu cores : 4 apicid : 0 initial apicid : 0 fpu : yes fpu_exception : yes cpuid level : 11 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr pdcm sse4_1 sse4_2 popcnt lahf_lm tpr_shadow vnmi flexpriority ept vpid bogomips : 5320.80 clflush size : 64 cache_alignment : 64 address sizes : 36 bits physical, 48 bits virtual power management: processor : 1 vendor_id : GenuineIntel cpu family : 6 model : 30 model name : Intel(R) Xeon(R) CPU X3450 @ 2.67GHz stepping : 5 cpu MHz : 2660.403 cache size : 8192 KB physical id : 0 siblings : 8 core id : 1 cpu cores : 4 apicid : 2 initial apicid : 2 fpu : yes fpu_exception : yes cpuid level : 11 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr pdcm sse4_1 sse4_2 popcnt lahf_lm tpr_shadow vnmi flexpriority ept vpid bogomips : 5319.72 clflush size : 64 cache_alignment : 64 address sizes : 36 bits physical, 48 bits virtual power management: processor : 2 vendor_id : GenuineIntel cpu family : 6 model : 30 model name : Intel(R) Xeon(R) CPU X3450 @ 2.67GHz stepping : 5 cpu MHz : 2660.403 cache size : 8192 KB physical id : 0 siblings : 8 core id : 2 cpu cores : 4 apicid : 4 initial apicid : 4 fpu : yes fpu_exception : yes cpuid level : 11 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr pdcm sse4_1 sse4_2 popcnt lahf_lm tpr_shadow vnmi flexpriority ept vpid bogomips : 5319.72 clflush size : 64 cache_alignment : 64 address sizes : 36 bits physical, 48 bits virtual power management: processor : 3 vendor_id : GenuineIntel cpu family : 6 model : 30 model name : Intel(R) Xeon(R) CPU X3450 @ 2.67GHz stepping : 5 cpu MHz : 2660.403 cache size : 8192 KB physical id : 0 siblings : 8 core id : 3 cpu cores : 4 apicid : 6 initial apicid : 6 fpu : yes fpu_exception : yes cpuid level : 11 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr pdcm sse4_1 sse4_2 popcnt lahf_lm tpr_shadow vnmi flexpriority ept vpid bogomips : 5319.72 clflush size : 64 cache_alignment : 64 address sizes : 36 bits physical, 48 bits virtual power management: processor : 4 vendor_id : GenuineIntel cpu family : 6 model : 30 model name : Intel(R) Xeon(R) CPU X3450 @ 2.67GHz stepping : 5 cpu MHz : 2660.403 cache size : 8192 KB physical id : 0 siblings : 8 core id : 0 cpu cores : 4 apicid : 1 initial apicid : 1 fpu : yes fpu_exception : yes cpuid level : 11 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr pdcm sse4_1 sse4_2 popcnt lahf_lm tpr_shadow vnmi flexpriority ept vpid bogomips : 5319.71 clflush size : 64 cache_alignment : 64 address sizes : 36 bits physical, 48 bits virtual power management: processor : 5 vendor_id : GenuineIntel cpu family : 6 model : 30 model name : Intel(R) Xeon(R) CPU X3450 @ 2.67GHz stepping : 5 cpu MHz : 2660.403 cache size : 8192 KB physical id : 0 siblings : 8 core id : 1 cpu cores : 4 apicid : 3 initial apicid : 3 fpu : yes fpu_exception : yes cpuid level : 11 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr pdcm sse4_1 sse4_2 popcnt lahf_lm tpr_shadow vnmi flexpriority ept vpid bogomips : 5319.70 clflush size : 64 cache_alignment : 64 address sizes : 36 bits physical, 48 bits virtual power management: processor : 6 vendor_id : GenuineIntel cpu family : 6 model : 30 model name : Intel(R) Xeon(R) CPU X3450 @ 2.67GHz stepping : 5 cpu MHz : 2660.403 cache size : 8192 KB physical id : 0 siblings : 8 core id : 2 cpu cores : 4 apicid : 5 initial apicid : 5 fpu : yes fpu_exception : yes cpuid level : 11 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr pdcm sse4_1 sse4_2 popcnt lahf_lm tpr_shadow vnmi flexpriority ept vpid bogomips : 5319.72 clflush size : 64 cache_alignment : 64 address sizes : 36 bits physical, 48 bits virtual power management: processor : 7 vendor_id : GenuineIntel cpu family : 6 model : 30 model name : Intel(R) Xeon(R) CPU X3450 @ 2.67GHz stepping : 5 cpu MHz : 2660.403 cache size : 8192 KB physical id : 0 siblings : 8 core id : 3 cpu cores : 4 apicid : 7 initial apicid : 7 fpu : yes fpu_exception : yes cpuid level : 11 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr pdcm sse4_1 sse4_2 popcnt lahf_lm tpr_shadow vnmi flexpriority ept vpid bogomips : 5319.70 clflush size : 64 cache_alignment : 64 address sizes : 36 bits physical, 48 bits virtual power management: -- System Information: Debian Release: 6.0.2 APT prefers stable-updates APT policy: (500, 'stable-updates'), (500, 'stable') Architecture: amd64 (x86_64) Kernel: Linux 2.6.32-5-amd64 (SMP w/8 CPU cores) Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Versions of packages qemu-kvm depends on: ii adduser 3.112+nmu2 add and remove users and groups ii bridge-utils 1.4-5 Utilities for configuring the Linu ii iproute 20100519-3 networking and traffic control too ii libaio1 0.3.107-7 Linux kernel AIO access library - ii libasound2 1.0.23-2.1 shared library for ALSA applicatio ii libbluetooth3 4.66-3 Library to use the BlueZ Linux Blu ii libbrlapi0.5 4.2-7 braille display access via BRLTTY ii libc6 2.11.2-10 Embedded GNU C Library: Shared lib ii libcurl3-gnutls 7.21.0-2 Multi-protocol file transfer libra ii libgnutls26 2.8.6-1 the GNU TLS library - runtime libr ii libncurses5 5.7+20100313-5 shared libraries for terminal hand ii libpci3 1:3.1.7-6 Linux PCI Utilities (shared librar ii libpulse0 0.9.21-3+squeeze1 PulseAudio client libraries ii libsasl2-2 2.1.23.dfsg1-7 Cyrus SASL - authentication abstra ii libsdl1.2debian 1.2.14-6.1 Simple DirectMedia Layer ii libuuid1 2.17.2-9 Universally Unique ID library ii libvdeplug2 2.2.3-3 Virtual Distributed Ethernet - Plu ii libx11-6 2:1.3.3-4 X11 client-side library ii python 2.6.6-3+squeeze6 interactive high-level object-orie ii zlib1g 1:1.2.3.4.dfsg-3 compression library - runtime Versions of packages qemu-kvm recommends: ii linux-image-2.6.26-2-amd 2.6.26-26lenny2 Linux 2.6.26 image on AMD64 ii linux-image-2.6.32-5-amd 2.6.32-35 Linux 2.6.32 for 64-bit PCs Versions of packages qemu-kvm suggests: pn debootstrap <none> (no description available) pn samba <none> (no description available) ii vde2 2.2.3-3 Virtual Distributed Ethernet -- no debconf information *** scm-rights-fd.patch >From e53f27b9d9df73461308618151fa6e6392aebd85 Mon Sep 17 00:00:00 2001 From: Paolo Bonzini <pbonz...@redhat.com> Date: Fri, 16 Apr 2010 15:25:23 +0000 Subject: stash away SCM_RIGHTS fd until a getfd command arrives If there is already a fd in s->msgfd before recvmsg it is closed by parts that this patch does not touch. So, only one descriptor can be "leaked" by attaching it to a command other than getfd. Signed-off-by: Paolo Bonzini <pbonz...@redhat.com> Signed-off-by: Luiz Capitulino <lcapitul...@redhat.com> diff -Nur qemu-kvm-0.12.4+noroms/monitor.c qemu-kvm-0.12.4+noroms.new/monitor.c --- qemu-kvm-0.12.4+noroms/monitor.c 2010-05-09 06:05:19.000000000 -0500 +++ qemu-kvm-0.12.4+noroms.new/monitor.c 2010-06-16 11:01:57.000000000 -0500 @@ -2294,15 +2294,6 @@ return; } - fd = dup(fd); - if (fd == -1) { - if (errno == EMFILE) - qemu_error_new(QERR_TOO_MANY_FILES); - else - qemu_error_new(QERR_UNDEFINED_ERROR); - return; - } - QLIST_FOREACH(monfd, &mon->fds, next) { if (strcmp(monfd->name, fdname) != 0) { continue; diff -Nur qemu-kvm-0.12.4+noroms/qemu-char.c qemu-kvm-0.12.4+noroms.new/qemu-char.c --- qemu-kvm-0.12.4+noroms/qemu-char.c 2010-05-09 06:05:19.000000000 -0500 +++ qemu-kvm-0.12.4+noroms.new/qemu-char.c 2010-06-16 11:03:40.000000000 -0500 @@ -1955,7 +1955,9 @@ { TCPCharDriver *s = chr->opaque; - return s->msgfd; + int fd = s->msgfd; + s->msgfd = -1; + return fd; } #ifndef _WIN32 @@ -2043,10 +2045,6 @@ tcp_chr_process_IAC_bytes(chr, s, buf, &size); if (size > 0) qemu_chr_read(chr, buf, size); - if (s->msgfd != -1) { - close(s->msgfd); - s->msgfd = -1; - } } } -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". 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