* Re: [Bridge] [Bugme-new] [Bug 37202] New: Cannot change MTU on bridged interface [not found] <bug-37202-10286@https.bugzilla.kernel.org/> @ 2011-06-13 23:37 ` Andrew Morton 0 siblings, 0 replies; 4+ messages in thread From: Andrew Morton @ 2011-06-13 23:37 UTC (permalink / raw) To: netdev, bridge; +Cc: steve-alexander, bugme-daemon (switched to email. Please respond via emailed reply-to-all, not via the bugzilla web interface). On Sat, 11 Jun 2011 10:59:18 GMT bugzilla-daemon@bugzilla.kernel.org wrote: > https://bugzilla.kernel.org/show_bug.cgi?id=37202 > > Summary: Cannot change MTU on bridged interface > Product: Networking > Version: 2.5 > Kernel Version: 3.0.0-rc2 > Platform: All > OS/Version: Linux > Tree: Mainline > Status: NEW > Severity: normal > Priority: P1 > Component: Other > AssignedTo: acme@ghostprotocols.net > ReportedBy: steve-alexander@roadrunner.com > Regression: No > > > Without bridge, setting mtu on eth0 works as expected. > When eth0 is added to bridge 'br0' and this command is executed, > > ip link set eth0 mtu 4000 > > results in: erk. Is this a new bug in 3.0-rc or have earlier kernels crashed in this manner? Thanks. > Modules linked in: fuse ip6table_filter ip6_tables ebtable_nat ebtables bridge > stp llc sunrpc ipv6 kvm_intel kvm uinput snd_hda_codec_hdmi > snd_hda_codec_realtek snd_hda_intel snd_hda_codec > snd_hwdep snd_seq i915 drm_kms_helper snd_seq_device drm iTCO_wdt i2c_algo_bit > i2c_i801 ata_generic pata_acpi usblp i2c_core e1000e xhci_hcd video > iTCO_vendor_support usb_storage snd_pcm se > rio_raw joydev pata_jmicron pcspkr microcode snd_timer snd soundcore > snd_page_alloc [last unloaded: scsi_wait_scan] > > Pid: 4247, comm: ip Not tainted 3.0.0-rc2 #4 Gigabyte Technology Co., Ltd. > H57M-USB3/H57M-USB3 > RIP: 0010:[<0000000000000000>] [< (null)>] (null) > RSP: 0018:ffff8801e419d680 EFLAGS: 00010202 > RAX: 0000000000000640 RBX: 0000000000000640 RCX: ffff880212874788 > RDX: ffffffffa0347e00 RSI: ffffffffa0345c21 RDI: ffff880212874fb0 > RBP: ffff8801e419d6a8 R08: 0000000000000000 R09: ffffffff81666030 > R10: ffffffff81a7a3a0 R11: 0000000000000001 R12: ffff880212874000 > R13: ffff880212874780 R14: 00000000ffffffea R15: ffffffffa00e4030 > FS: 00007effa3ca6720(0000) GS:ffff88021fcc0000(0000) knlGS:0000000000000000 > CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b > CR2: 0000000000000000 CR3: 00000001e401b000 CR4: 00000000000006e0 > DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 > DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 > Process ip (pid: 4247, threadinfo ffff8801e419c000, task ffff8801f5f14560) > Stack: > ffffffffa033b1a6 ffff880212874000 00000000ffffffed ffff8801f50af400 > ffff880211dc4000 ffff8801e419d6c8 ffffffff813ba810 0000000000000007 > ffff880212874780 ffff8801e419d6f8 ffffffffa033e2b4 ffff880211dc4000 > > Call Trace: > [<ffffffffa033b1a6>] ? br_change_mtu+0x61/0x81 [bridge] > [<ffffffff813ba810>] dev_set_mtu+0x45/0x75 > [<ffffffffa033e2b4>] br_device_event+0x7c/0x16c [bridge] > [<ffffffff8146f921>] notifier_call_chain+0x37/0x63 > [<ffffffff8106d934>] raw_notifier_call_chain+0x14/0x16 > [<ffffffff813ba107>] call_netdevice_notifiers+0x4a/0x4f > [<ffffffff813ba838>] dev_set_mtu+0x6d/0x75 > [<ffffffff813c8da2>] do_setlink+0x1ee/0x739 > [<ffffffff810e8052>] ? set_pte_at+0xe/0x12 > [<ffffffff8122e1de>] ? nla_parse+0x4f/0xc3 > [<ffffffff813c9f45>] rtnl_newlink+0x252/0x48d > [<ffffffff813c9db7>] ? rtnl_newlink+0xc4/0x48d > [<ffffffff8103d040>] ? need_resched+0x23/0x2d > [<ffffffff813af3e3>] ? sock_rmalloc+0x33/0x95 > [<ffffffff813c9afe>] rtnetlink_rcv_msg+0x1eb/0x201 > [<ffffffff8103d040>] ? need_resched+0x23/0x2d > [<ffffffff813c9913>] ? __rtnl_unlock+0x17/0x17 > [<ffffffff813dd9a8>] netlink_rcv_skb+0x45/0x90 > [<ffffffff813c94c4>] rtnetlink_rcv+0x26/0x2d > [<ffffffff813dd4b3>] netlink_unicast+0xf1/0x15a > [<ffffffff813dd7a1>] netlink_sendmsg+0x285/0x2a3 > [<ffffffff8110c558>] ? fatal_signal_pending+0x12/0x29 > [<ffffffff813a9e7d>] __sock_sendmsg+0x6a/0x76 > [<ffffffff813aa764>] sock_sendmsg+0xa8/0xc1 > [<ffffffff810cf7b0>] ? filemap_fault+0x20b/0x36c > [<ffffffff810cde20>] ? unlock_page+0x2a/0x2f > [<ffffffff810e8a1a>] ? __do_fault+0x34d/0x384 > [<ffffffff8103d040>] ? need_resched+0x23/0x2d > [<ffffffff8103d058>] ? should_resched+0xe/0x2e > [<ffffffff8103d040>] ? need_resched+0x23/0x2d > [<ffffffff8103d058>] ? should_resched+0xe/0x2e > [<ffffffff813b406e>] ? copy_from_user+0x2f/0x31 > [<ffffffff813b445e>] ? verify_iovec+0x54/0xa6 > [<ffffffff813aaa1a>] __sys_sendmsg+0x1ee/0x272 > [<ffffffff810eb570>] ? handle_mm_fault+0x149/0x15e > [<ffffffff8146c5b6>] ? _raw_spin_lock+0xe/0x10 > [<ffffffff8146f8ab>] ? do_page_fault+0x321/0x360 > [<ffffffff810efda4>] ? do_brk+0x242/0x296 > [<ffffffff813ac02f>] sys_sendmsg+0x42/0x60 > [<ffffffff81472d42>] system_call_fastpath+0x16/0x1b > Code: Bad RIP value. > RIP [< (null)>] (null) > RSP <ffff8801e419d680> > CR2: 0000000000000000 > ---[ end trace 29a99239194ab188 ]--- > > > Bridge creation is managed by Fedora14 standard configs. > eth0 is the only interface added to the bridge. > > eth0 is > 03:00.0 Ethernet controller [0200]: Intel Corporation 82574L Gigabit Network > Connection [8086:10d3] > Subsystem: Intel Corporation Gigabit CT Desktop Adapter [8086:a01f] > Kernel driver in use: e1000e > Kernel modules: e1000e > ^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [Bugme-new] [Bug 37202] New: Cannot change MTU on bridged interface @ 2011-06-13 23:37 ` Andrew Morton 0 siblings, 0 replies; 4+ messages in thread From: Andrew Morton @ 2011-06-13 23:37 UTC (permalink / raw) To: netdev, bridge; +Cc: bugme-daemon, Stephen Hemminger, steve-alexander (switched to email. Please respond via emailed reply-to-all, not via the bugzilla web interface). On Sat, 11 Jun 2011 10:59:18 GMT bugzilla-daemon@bugzilla.kernel.org wrote: > https://bugzilla.kernel.org/show_bug.cgi?id=37202 > > Summary: Cannot change MTU on bridged interface > Product: Networking > Version: 2.5 > Kernel Version: 3.0.0-rc2 > Platform: All > OS/Version: Linux > Tree: Mainline > Status: NEW > Severity: normal > Priority: P1 > Component: Other > AssignedTo: acme@ghostprotocols.net > ReportedBy: steve-alexander@roadrunner.com > Regression: No > > > Without bridge, setting mtu on eth0 works as expected. > When eth0 is added to bridge 'br0' and this command is executed, > > ip link set eth0 mtu 4000 > > results in: erk. Is this a new bug in 3.0-rc or have earlier kernels crashed in this manner? Thanks. > Modules linked in: fuse ip6table_filter ip6_tables ebtable_nat ebtables bridge > stp llc sunrpc ipv6 kvm_intel kvm uinput snd_hda_codec_hdmi > snd_hda_codec_realtek snd_hda_intel snd_hda_codec > snd_hwdep snd_seq i915 drm_kms_helper snd_seq_device drm iTCO_wdt i2c_algo_bit > i2c_i801 ata_generic pata_acpi usblp i2c_core e1000e xhci_hcd video > iTCO_vendor_support usb_storage snd_pcm se > rio_raw joydev pata_jmicron pcspkr microcode snd_timer snd soundcore > snd_page_alloc [last unloaded: scsi_wait_scan] > > Pid: 4247, comm: ip Not tainted 3.0.0-rc2 #4 Gigabyte Technology Co., Ltd. > H57M-USB3/H57M-USB3 > RIP: 0010:[<0000000000000000>] [< (null)>] (null) > RSP: 0018:ffff8801e419d680 EFLAGS: 00010202 > RAX: 0000000000000640 RBX: 0000000000000640 RCX: ffff880212874788 > RDX: ffffffffa0347e00 RSI: ffffffffa0345c21 RDI: ffff880212874fb0 > RBP: ffff8801e419d6a8 R08: 0000000000000000 R09: ffffffff81666030 > R10: ffffffff81a7a3a0 R11: 0000000000000001 R12: ffff880212874000 > R13: ffff880212874780 R14: 00000000ffffffea R15: ffffffffa00e4030 > FS: 00007effa3ca6720(0000) GS:ffff88021fcc0000(0000) knlGS:0000000000000000 > CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b > CR2: 0000000000000000 CR3: 00000001e401b000 CR4: 00000000000006e0 > DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 > DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 > Process ip (pid: 4247, threadinfo ffff8801e419c000, task ffff8801f5f14560) > Stack: > ffffffffa033b1a6 ffff880212874000 00000000ffffffed ffff8801f50af400 > ffff880211dc4000 ffff8801e419d6c8 ffffffff813ba810 0000000000000007 > ffff880212874780 ffff8801e419d6f8 ffffffffa033e2b4 ffff880211dc4000 > > Call Trace: > [<ffffffffa033b1a6>] ? br_change_mtu+0x61/0x81 [bridge] > [<ffffffff813ba810>] dev_set_mtu+0x45/0x75 > [<ffffffffa033e2b4>] br_device_event+0x7c/0x16c [bridge] > [<ffffffff8146f921>] notifier_call_chain+0x37/0x63 > [<ffffffff8106d934>] raw_notifier_call_chain+0x14/0x16 > [<ffffffff813ba107>] call_netdevice_notifiers+0x4a/0x4f > [<ffffffff813ba838>] dev_set_mtu+0x6d/0x75 > [<ffffffff813c8da2>] do_setlink+0x1ee/0x739 > [<ffffffff810e8052>] ? set_pte_at+0xe/0x12 > [<ffffffff8122e1de>] ? nla_parse+0x4f/0xc3 > [<ffffffff813c9f45>] rtnl_newlink+0x252/0x48d > [<ffffffff813c9db7>] ? rtnl_newlink+0xc4/0x48d > [<ffffffff8103d040>] ? need_resched+0x23/0x2d > [<ffffffff813af3e3>] ? sock_rmalloc+0x33/0x95 > [<ffffffff813c9afe>] rtnetlink_rcv_msg+0x1eb/0x201 > [<ffffffff8103d040>] ? need_resched+0x23/0x2d > [<ffffffff813c9913>] ? __rtnl_unlock+0x17/0x17 > [<ffffffff813dd9a8>] netlink_rcv_skb+0x45/0x90 > [<ffffffff813c94c4>] rtnetlink_rcv+0x26/0x2d > [<ffffffff813dd4b3>] netlink_unicast+0xf1/0x15a > [<ffffffff813dd7a1>] netlink_sendmsg+0x285/0x2a3 > [<ffffffff8110c558>] ? fatal_signal_pending+0x12/0x29 > [<ffffffff813a9e7d>] __sock_sendmsg+0x6a/0x76 > [<ffffffff813aa764>] sock_sendmsg+0xa8/0xc1 > [<ffffffff810cf7b0>] ? filemap_fault+0x20b/0x36c > [<ffffffff810cde20>] ? unlock_page+0x2a/0x2f > [<ffffffff810e8a1a>] ? __do_fault+0x34d/0x384 > [<ffffffff8103d040>] ? need_resched+0x23/0x2d > [<ffffffff8103d058>] ? should_resched+0xe/0x2e > [<ffffffff8103d040>] ? need_resched+0x23/0x2d > [<ffffffff8103d058>] ? should_resched+0xe/0x2e > [<ffffffff813b406e>] ? copy_from_user+0x2f/0x31 > [<ffffffff813b445e>] ? verify_iovec+0x54/0xa6 > [<ffffffff813aaa1a>] __sys_sendmsg+0x1ee/0x272 > [<ffffffff810eb570>] ? handle_mm_fault+0x149/0x15e > [<ffffffff8146c5b6>] ? _raw_spin_lock+0xe/0x10 > [<ffffffff8146f8ab>] ? do_page_fault+0x321/0x360 > [<ffffffff810efda4>] ? do_brk+0x242/0x296 > [<ffffffff813ac02f>] sys_sendmsg+0x42/0x60 > [<ffffffff81472d42>] system_call_fastpath+0x16/0x1b > Code: Bad RIP value. > RIP [< (null)>] (null) > RSP <ffff8801e419d680> > CR2: 0000000000000000 > ---[ end trace 29a99239194ab188 ]--- > > > Bridge creation is managed by Fedora14 standard configs. > eth0 is the only interface added to the bridge. > > eth0 is > 03:00.0 Ethernet controller [0200]: Intel Corporation 82574L Gigabit Network > Connection [8086:10d3] > Subsystem: Intel Corporation Gigabit CT Desktop Adapter [8086:a01f] > Kernel driver in use: e1000e > Kernel modules: e1000e > ^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [Bridge] [Bugme-new] [Bug 37202] New: Cannot change MTU on bridged interface 2011-06-13 23:37 ` Andrew Morton @ 2011-06-14 3:16 ` Shan Wei -1 siblings, 0 replies; 4+ messages in thread From: Shan Wei @ 2011-06-14 3:16 UTC (permalink / raw) To: Andrew Morton; +Cc: netdev, bridge, bugme-daemon, holler, steve-alexander Andrew Morton wrote, at 06/14/2011 07:37 AM: > > (switched to email. Please respond via emailed reply-to-all, not via the > bugzilla web interface). > > On Sat, 11 Jun 2011 10:59:18 GMT > bugzilla-daemon@bugzilla.kernel.org wrote: > >> https://bugzilla.kernel.org/show_bug.cgi?id=37202 >> >> Summary: Cannot change MTU on bridged interface >> Product: Networking >> Version: 2.5 >> Kernel Version: 3.0.0-rc2 >> Platform: All >> OS/Version: Linux >> Tree: Mainline >> Status: NEW >> Severity: normal >> Priority: P1 >> Component: Other >> AssignedTo: acme@ghostprotocols.net >> ReportedBy: steve-alexander@roadrunner.com >> Regression: No >> >> >> Without bridge, setting mtu on eth0 works as expected. >> When eth0 is added to bridge 'br0' and this command is executed, >> >> ip link set eth0 mtu 4000 This bug has been fixed. commit 6407d74c5106bb362b4087693688afd34942b094 Author: Alexander Holler <holler@ahsoftware.de> Date: Tue Jun 7 00:51:35 2011 -0700 bridge: provide a cow_metrics method for fake_ops Like in commit 0972ddb237 (provide cow_metrics() methods to blackhole dst_ops), we must provide a cow_metrics for bridges fake_dst_ops as well. This fixes a regression coming from commits 62fa8a846d7d (net: Implement read-only protection and COW'ing of metrics.) and 33eb9873a28 (bridge: initialize fake_rtable metrics) ip link set mybridge mtu 1234 -- Best Regards ----- Shan Wei ^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [Bugme-new] [Bug 37202] New: Cannot change MTU on bridged interface @ 2011-06-14 3:16 ` Shan Wei 0 siblings, 0 replies; 4+ messages in thread From: Shan Wei @ 2011-06-14 3:16 UTC (permalink / raw) To: Andrew Morton Cc: netdev, bridge, bugme-daemon, Stephen Hemminger, steve-alexander, holler Andrew Morton wrote, at 06/14/2011 07:37 AM: > > (switched to email. Please respond via emailed reply-to-all, not via the > bugzilla web interface). > > On Sat, 11 Jun 2011 10:59:18 GMT > bugzilla-daemon@bugzilla.kernel.org wrote: > >> https://bugzilla.kernel.org/show_bug.cgi?id=37202 >> >> Summary: Cannot change MTU on bridged interface >> Product: Networking >> Version: 2.5 >> Kernel Version: 3.0.0-rc2 >> Platform: All >> OS/Version: Linux >> Tree: Mainline >> Status: NEW >> Severity: normal >> Priority: P1 >> Component: Other >> AssignedTo: acme@ghostprotocols.net >> ReportedBy: steve-alexander@roadrunner.com >> Regression: No >> >> >> Without bridge, setting mtu on eth0 works as expected. >> When eth0 is added to bridge 'br0' and this command is executed, >> >> ip link set eth0 mtu 4000 This bug has been fixed. commit 6407d74c5106bb362b4087693688afd34942b094 Author: Alexander Holler <holler@ahsoftware.de> Date: Tue Jun 7 00:51:35 2011 -0700 bridge: provide a cow_metrics method for fake_ops Like in commit 0972ddb237 (provide cow_metrics() methods to blackhole dst_ops), we must provide a cow_metrics for bridges fake_dst_ops as well. This fixes a regression coming from commits 62fa8a846d7d (net: Implement read-only protection and COW'ing of metrics.) and 33eb9873a28 (bridge: initialize fake_rtable metrics) ip link set mybridge mtu 1234 -- Best Regards ----- Shan Wei ^ permalink raw reply [flat|nested] 4+ messages in thread
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[not found] <bug-37202-10286@https.bugzilla.kernel.org/>
2011-06-13 23:37 ` [Bridge] [Bugme-new] [Bug 37202] New: Cannot change MTU on bridged interface Andrew Morton
2011-06-13 23:37 ` Andrew Morton
2011-06-14 3:16 ` [Bridge] " Shan Wei
2011-06-14 3:16 ` Shan Wei
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