* 2.6.25-rc6-git2: warn_on_slowpath for tcp_simple_retransmit @ 2008-04-01 22:28 Alessandro Suardi 2008-04-02 8:10 ` Ilpo Järvinen 0 siblings, 1 reply; 6+ messages in thread From: Alessandro Suardi @ 2008-04-01 22:28 UTC (permalink / raw) To: Linux Kernel; +Cc: netdev Found this in my FC6-based bittorrent box (K7-800 running a 2.6.25-rc6-git2 kernel) this evening. The kernel was upgraded two weeks ago to fix the bug in which an USB VIA driver hammered the PCI bus causing ATA disk performance to drop, and has been running since then (it still is). So it's actually 2.6.25-rc6-git2 plus patch as in here http://www.gossamer-threads.com/lists/linux/kernel/895506#895506 If there's anything useful I can do, just ask. Thanks ! [1164423.381894] WARNING: at net/ipv4/tcp_output.c:1811 tcp_simple_retransmit+0xde/0x167() [1164423.382797] Modules linked in: iptable_filter ip_tables x_tables ipv6 sd_mod floppy usb_storage scsi_mod parport_pc parport ehci_hcd uhci_hcd [1164423.384115] Pid: 11864, comm: peerguardnf Not tainted 2.6.25-rc6-git2 #2 [1164423.384734] [<c0114964>] warn_on_slowpath+0x41/0x51 [1164423.385262] [<c012e0ab>] ? __lock_acquire+0xac8/0xb10 [1164423.385803] [<c012e0ab>] ? __lock_acquire+0xac8/0xb10 [1164423.386235] [<c02d6dfc>] ? __inet_lookup_established+0x171/0x17b [1164423.386837] [<c02e7235>] ? tcp_v4_err+0xf4/0x353 [1164423.387338] [<c02e3f71>] tcp_simple_retransmit+0xde/0x167 [1164423.387883] [<c02e733b>] tcp_v4_err+0x1fa/0x353 [1164423.388369] [<c02eec6f>] ? icmp_unreach+0x1e7/0x280 [1164423.388893] [<c02eecc6>] icmp_unreach+0x23e/0x280 [1164423.389392] [<c02ee1ea>] icmp_rcv+0x1c9/0x1f1 [1164423.389893] [<c02d08b2>] ip_local_deliver_finish+0xf6/0x1a1 [1164423.390453] [<c02cc3c1>] nf_reinject+0xc3/0x136 [1164423.390940] [<c02fb3d0>] ipq_rcv_skb+0x359/0x3b5 [1164423.391441] [<c02c8d5c>] netlink_unicast+0x1b8/0x21c [1164423.391968] [<c02c98f9>] netlink_sendmsg+0x241/0x24e [1164423.392487] [<c02b166b>] sock_sendmsg+0xc9/0xe0 [1164423.392981] [<c012455d>] ? autoremove_wake_function+0x0/0x33 [1164423.393560] [<c020c81c>] ? copy_from_user+0x3b/0x5e [1164423.394226] [<c02b7d58>] ? verify_iovec+0x40/0x70 [1164423.394733] [<c02b17cf>] sys_sendmsg+0x14d/0x1a8 [1164423.395228] [<c020ca54>] ? copy_to_user+0x3d/0x49 [1164423.395733] [<c02b1f57>] ? move_addr_to_user+0x3b/0x52 [1164423.396268] [<c02b21a5>] ? sys_recvfrom+0xb8/0xc3 [1164423.396774] [<c012e0ab>] ? __lock_acquire+0xac8/0xb10 [1164423.397305] [<c010463e>] ? do_softirq+0x9a/0xa8 [1164423.397893] [<c0102c8b>] ? restore_nocheck+0x12/0x15 [1164423.398417] [<c012d209>] ? trace_hardirqs_on+0xe6/0x10d [1164423.398957] [<c0102c8b>] ? restore_nocheck+0x12/0x15 [1164423.399483] [<c02b2577>] sys_socketcall+0x14e/0x166 [1164423.399995] [<c0102bdd>] ? sysenter_past_esp+0x9a/0xa5 [1164423.400528] [<c0102ba2>] sysenter_past_esp+0x5f/0xa5 [1164423.401047] [<c0172824>] ? bio_fs_destructor+0x0/0x10 [1164423.401580] ======================= [1164423.401892] ---[ end trace ec1e34ea2cdbd7ae ]--- [1164425.080514] ------------[ cut here ]------------ [1164425.081052] WARNING: at net/ipv4/tcp_input.c:1771 tcp_enter_frto+0x150/0x1ec() [1164425.081910] Modules linked in: iptable_filter ip_tables x_tables ipv6 sd_mod floppy usb_storage scsi_mod parport_pc parport ehci_hcd uhci_hcd [1164425.083225] Pid: 0, comm: swapper Not tainted 2.6.25-rc6-git2 #2 [1164425.083797] [<c0114964>] warn_on_slowpath+0x41/0x51 [1164425.084323] [<c012e0ab>] ? __lock_acquire+0xac8/0xb10 [1164425.084844] [<c012e0ab>] ? __lock_acquire+0xac8/0xb10 [1164425.085374] [<c012e0ab>] ? __lock_acquire+0xac8/0xb10 [1164425.085904] [<c02e4eed>] ? tcp_write_timer+0x16/0x575 [1164425.086434] [<c02e0644>] tcp_enter_frto+0x150/0x1ec [1164425.086943] [<c02e524c>] tcp_write_timer+0x375/0x575 [1164425.087458] [<c011bb23>] run_timer_softirq+0x112/0x16d [1164425.087985] [<c02e4ed7>] ? tcp_write_timer+0x0/0x575 [1164425.088490] [<c02e4ed7>] ? tcp_write_timer+0x0/0x575 [1164425.089012] [<c0118c8e>] __do_softirq+0x51/0xa8 [1164425.089505] [<c01045fc>] do_softirq+0x58/0xa8 [1164425.089986] [<c013647d>] ? handle_level_irq+0x0/0xbf [1164425.090511] [<c0118bee>] irq_exit+0x3b/0x47 [1164425.090975] [<c01046e4>] do_IRQ+0x98/0xad [1164425.091428] [<c0102e3a>] common_interrupt+0x2e/0x34 [1164425.091939] [<c01017e5>] ? default_idle+0x45/0x72 [1164425.092490] [<c01017a0>] ? default_idle+0x0/0x72 [1164425.092989] [<c0101778>] cpu_idle+0x60/0x88 [1164425.093451] [<c031b6f4>] rest_init+0x5c/0x5e [1164425.093927] ======================= [1164425.094334] ---[ end trace ec1e34ea2cdbd7ae ]--- --alessandro "Hold back the years, hold back the hours I want to live to see the sun break through these days" (Patrick Wolf, 'This Weather') ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: 2.6.25-rc6-git2: warn_on_slowpath for tcp_simple_retransmit 2008-04-01 22:28 2.6.25-rc6-git2: warn_on_slowpath for tcp_simple_retransmit Alessandro Suardi @ 2008-04-02 8:10 ` Ilpo Järvinen 2008-04-02 20:09 ` Alessandro Suardi 0 siblings, 1 reply; 6+ messages in thread From: Ilpo Järvinen @ 2008-04-02 8:10 UTC (permalink / raw) To: Alessandro Suardi; +Cc: Linux Kernel, Netdev On Wed, 2 Apr 2008, Alessandro Suardi wrote: > Found this in my FC6-based bittorrent box (K7-800 running > a 2.6.25-rc6-git2 kernel) this evening. > > The kernel was upgraded two weeks ago to fix the bug > in which an USB VIA driver hammered the PCI bus > causing ATA disk performance to drop, and has been > running since then (it still is). > > So it's actually 2.6.25-rc6-git2 plus patch as in here > http://www.gossamer-threads.com/lists/linux/kernel/895506#895506 > > If there's anything useful I can do, just ask. Thanks ! Can you reproduce? -- i. ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: 2.6.25-rc6-git2: warn_on_slowpath for tcp_simple_retransmit 2008-04-02 8:10 ` Ilpo Järvinen @ 2008-04-02 20:09 ` Alessandro Suardi 2008-04-02 20:39 ` Ilpo Järvinen 0 siblings, 1 reply; 6+ messages in thread From: Alessandro Suardi @ 2008-04-02 20:09 UTC (permalink / raw) To: Ilpo Järvinen; +Cc: Linux Kernel, Netdev On Wed, Apr 2, 2008 at 10:10 AM, Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> wrote: > On Wed, 2 Apr 2008, Alessandro Suardi wrote: > > > Found this in my FC6-based bittorrent box (K7-800 running > > a 2.6.25-rc6-git2 kernel) this evening. > > > > The kernel was upgraded two weeks ago to fix the bug > > in which an USB VIA driver hammered the PCI bus > > causing ATA disk performance to drop, and has been > > running since then (it still is). > > > > So it's actually 2.6.25-rc6-git2 plus patch as in here > > http://www.gossamer-threads.com/lists/linux/kernel/895506#895506 > > > > If there's anything useful I can do, just ask. Thanks ! > > Can you reproduce? Nope. That only happened once in this uptime: [root@donkey ~]# uptime 21:57:21 up 14 days, 22:04, 5 users, load average: 0.64, 0.47, 0.44 The machine runs unattended as a bittorrent client, 24x7, with a very low traffic (uploading at a steady ~36KB/s, and downloads happen in peaks). I VNC into it in the evening and manage the torrents; that is all. Now, there's an interesting tidbit: [root@donkey ~]# ip -s link show eth0 3: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast qlen 1000 link/ether 00:c0:49:a7:33:fe brd ff:ff:ff:ff:ff:ff RX: bytes packets errors dropped overrun mcast 959044156 60549131 0 0 0 0 TX: bytes packets errors dropped carrier collsns 744533957 66149681 0 0 0 0 [root@donkey ~]# ifconfig eth0 eth0 Link encap:Ethernet HWaddr 00:C0:49:A7:33:FE inet addr:192.168.1.7 Bcast:192.168.1.255 Mask:255.255.255.0 inet6 addr: fe80::2c0:49ff:fea7:33fe/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:60551468 errors:0 dropped:0 overruns:0 frame:0 TX packets:66152721 errors:0 dropped:0 overruns:1 carrier:0 collisions:0 txqueuelen:1000 RX bytes:959199592 (914.7 MiB) TX bytes:748395356 (713.7 MiB) Interrupt:12 Base address:0xce00 Somehow the "overruns" counter is seen differently by 'ip' and 'ifconfig' - one says 0, the other says 1 - perhaps the packet that WARN'd me on tcp_simple_retransmit ? If there's anything else - reproducing seems really really unlikely - 1 packet in 66 million... Thanks, --alessandro "Hold back the years, hold back the hours I want to live to see the sun break through these days" (Patrick Wolf, 'This Weather') ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: 2.6.25-rc6-git2: warn_on_slowpath for tcp_simple_retransmit 2008-04-02 20:09 ` Alessandro Suardi @ 2008-04-02 20:39 ` Ilpo Järvinen 2008-04-03 12:52 ` Ilpo Järvinen 0 siblings, 1 reply; 6+ messages in thread From: Ilpo Järvinen @ 2008-04-02 20:39 UTC (permalink / raw) To: Alessandro Suardi; +Cc: Linux Kernel, Netdev [-- Attachment #1: Type: TEXT/PLAIN, Size: 2880 bytes --] On Wed, 2 Apr 2008, Alessandro Suardi wrote: > On Wed, Apr 2, 2008 at 10:10 AM, Ilpo Järvinen > <ilpo.jarvinen@helsinki.fi> wrote: > > On Wed, 2 Apr 2008, Alessandro Suardi wrote: > > > > > Found this in my FC6-based bittorrent box (K7-800 running > > > a 2.6.25-rc6-git2 kernel) this evening. > > > > > > The kernel was upgraded two weeks ago to fix the bug > > > in which an USB VIA driver hammered the PCI bus > > > causing ATA disk performance to drop, and has been > > > running since then (it still is). > > > > > > So it's actually 2.6.25-rc6-git2 plus patch as in here > > > http://www.gossamer-threads.com/lists/linux/kernel/895506#895506 > > > > > > If there's anything useful I can do, just ask. Thanks ! > > > > Can you reproduce? > > Nope. That only happened once in this uptime: > > [root@donkey ~]# uptime > 21:57:21 up 14 days, 22:04, 5 users, load average: 0.64, 0.47, 0.44 > > The machine runs unattended as a bittorrent client, 24x7, > with a very low traffic (uploading at a steady ~36KB/s, > and downloads happen in peaks). > > I VNC into it in the evening and manage the torrents; > that is all. > > Now, there's an interesting tidbit: > > [root@donkey ~]# ip -s link show eth0 > 3: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast qlen 1000 > link/ether 00:c0:49:a7:33:fe brd ff:ff:ff:ff:ff:ff > RX: bytes packets errors dropped overrun mcast > 959044156 60549131 0 0 0 0 > TX: bytes packets errors dropped carrier collsns > 744533957 66149681 0 0 0 0 > > [root@donkey ~]# ifconfig eth0 > eth0 Link encap:Ethernet HWaddr 00:C0:49:A7:33:FE > inet addr:192.168.1.7 Bcast:192.168.1.255 Mask:255.255.255.0 > inet6 addr: fe80::2c0:49ff:fea7:33fe/64 Scope:Link > UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 > RX packets:60551468 errors:0 dropped:0 overruns:0 frame:0 > TX packets:66152721 errors:0 dropped:0 overruns:1 carrier:0 > collisions:0 txqueuelen:1000 > RX bytes:959199592 (914.7 MiB) TX bytes:748395356 (713.7 MiB) > Interrupt:12 Base address:0xce00 > > Somehow the "overruns" counter is seen differently by 'ip' > and 'ifconfig' - one says 0, the other says 1 - perhaps the > packet that WARN'd me on tcp_simple_retransmit ? ...I find that extreme unlikely. > If there's anything else - reproducing seems really really > unlikely - 1 packet in 66 million... Yeah, it seems some hard to hit corner case and so far nobody has a reproducable scenario (or at least I'm not aware of any). I tried to reproduce it last weekend and failed, even with some netem stimuli added while torrenting. I'll probably ask soon Andrew to queue some low cost debug patch into -mm to get a bit more clues when somebody running mm happens to hit it. -- i. ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: 2.6.25-rc6-git2: warn_on_slowpath for tcp_simple_retransmit 2008-04-02 20:39 ` Ilpo Järvinen @ 2008-04-03 12:52 ` Ilpo Järvinen 0 siblings, 0 replies; 6+ messages in thread From: Ilpo Järvinen @ 2008-04-03 12:52 UTC (permalink / raw) To: Alessandro Suardi, David Miller, Arjan van de Ven; +Cc: Linux Kernel, Netdev [-- Attachment #1: Type: TEXT/PLAIN, Size: 5191 bytes --] On Wed, 2 Apr 2008, Ilpo Järvinen wrote: > On Wed, 2 Apr 2008, Alessandro Suardi wrote: > > > On Wed, Apr 2, 2008 at 10:10 AM, Ilpo Järvinen > > <ilpo.jarvinen@helsinki.fi> wrote: > > > On Wed, 2 Apr 2008, Alessandro Suardi wrote: > > > > > > > Found this in my FC6-based bittorrent box (K7-800 running > > > > a 2.6.25-rc6-git2 kernel) this evening. > > > > > > > > The kernel was upgraded two weeks ago to fix the bug > > > > in which an USB VIA driver hammered the PCI bus > > > > causing ATA disk performance to drop, and has been > > > > running since then (it still is). > > > > > > > > So it's actually 2.6.25-rc6-git2 plus patch as in here > > > > http://www.gossamer-threads.com/lists/linux/kernel/895506#895506 > > > > > > > > If there's anything useful I can do, just ask. Thanks ! > > > > > > Can you reproduce? > > > > Nope. That only happened once in this uptime: > > > > [root@donkey ~]# uptime > > 21:57:21 up 14 days, 22:04, 5 users, load average: 0.64, 0.47, 0.44 > > [...snip...] > > If there's anything else - reproducing seems really really > > unlikely - 1 packet in 66 million... > > Yeah, it seems some hard to hit corner case and so far nobody has > a reproducable scenario (or at least I'm not aware of any). I tried > to reproduce it last weekend and failed, even with some netem stimuli > added while torrenting. No wonder you won't hit it too often if it's this one. This wasn't reported be kernel before 2.6.24-gsomething but I think pre-2.6.24s are broken too, they my return negative packets_in_flight because of this for a while (which can lead to packet bursts). This shouldn't cause fackets_out inconsistencies, so there's liekly more to find. I already checked rest of the lost_out players and found no other similar bugs in them. Maybe I should try to play with mtu probing at home if it's able to catch more fishes. The patch is just compile tested. -- i. [PATCH] [TCP]: tcp_simple_retransmit can cause S+L tcp_simple_retransmit does L increment without any checking whatsoever for overflowing S+L when NewReno is in use. The simplest scenario I can currently think of is rather complex in practice (there might be some more straightforward cases though). Ie., if mss is reduced during mtu probing, it endd up marking everything lost and if some duplicate ACKs arrived prior to that sacked_out will be non-zero as well, leading to S+L > packets_out, tcp_clean_rtx_queue on the next cumulative ACK or tcp_fastretrans_alert on the next duplicate ACK will fix the S counter. Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> --- include/net/tcp.h | 2 ++ net/ipv4/tcp_input.c | 22 ++++++++++++++++------ net/ipv4/tcp_output.c | 3 +++ 3 files changed, 21 insertions(+), 6 deletions(-) diff --git a/include/net/tcp.h b/include/net/tcp.h index 723b368..8f5fc52 100644 --- a/include/net/tcp.h +++ b/include/net/tcp.h @@ -760,6 +760,8 @@ static inline unsigned int tcp_packets_in_flight(const struct tcp_sock *tp) return tp->packets_out - tcp_left_out(tp) + tp->retrans_out; } +extern int tcp_limit_reno_sacked(struct tcp_sock *tp); + /* If cwnd > ssthresh, we may raise ssthresh to be half-way to cwnd. * The exception is rate halving phase, when cwnd is decreasing towards * ssthresh. diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c index 6e46b4c..94f3015 100644 --- a/net/ipv4/tcp_input.c +++ b/net/ipv4/tcp_input.c @@ -1625,13 +1625,11 @@ out: return flag; } -/* If we receive more dupacks than we expected counting segments - * in assumption of absent reordering, interpret this as reordering. - * The only another reason could be bug in receiver TCP. +/* Limits sacked_out so that sum with lost_out isn't ever larger than + * packets_out. Returns zero if sacked_out adjustement wasn't necessary. */ -static void tcp_check_reno_reordering(struct sock *sk, const int addend) +int tcp_limit_reno_sacked(struct tcp_sock *tp) { - struct tcp_sock *tp = tcp_sk(sk); u32 holes; holes = max(tp->lost_out, 1U); @@ -1639,8 +1637,20 @@ static void tcp_check_reno_reordering(struct sock *sk, const int addend) if ((tp->sacked_out + holes) > tp->packets_out) { tp->sacked_out = tp->packets_out - holes; - tcp_update_reordering(sk, tp->packets_out + addend, 0); + return 1; } + return 0; +} + +/* If we receive more dupacks than we expected counting segments + * in assumption of absent reordering, interpret this as reordering. + * The only another reason could be bug in receiver TCP. + */ +static void tcp_check_reno_reordering(struct sock *sk, const int addend) +{ + struct tcp_sock *tp = tcp_sk(sk); + if (tcp_limit_reno_sacked(tp)) + tcp_update_reordering(sk, tp->packets_out + addend, 0); } /* Emulate SACKs for SACKless connection: account for a new dupack. */ diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c index 6e25540..441fdd3 100644 --- a/net/ipv4/tcp_output.c +++ b/net/ipv4/tcp_output.c @@ -1808,6 +1808,9 @@ void tcp_simple_retransmit(struct sock *sk) if (!lost) return; + if (tcp_is_reno(tp)) + tcp_limit_reno_sacked(tp); + tcp_verify_left_out(tp); /* Don't muck with the congestion window here. -- 1.5.2.2 ^ permalink raw reply [flat|nested] 6+ messages in thread
* 2.6.25-rc8-git2: Reported regressions from 2.6.24 @ 2008-04-03 22:49 Rafael J. Wysocki 2008-04-03 23:30 ` 2.6.25-rc6-git2: warn_on_slowpath for tcp_simple_retransmit Rafael J. Wysocki 0 siblings, 1 reply; 6+ messages in thread From: Rafael J. Wysocki @ 2008-04-03 22:49 UTC (permalink / raw) To: Linux Kernel Mailing List Cc: Adrian Bunk, Andrew Morton, Linus Torvalds, Natalie Protasevich [-- Warning: decoded text below may be mangled, UTF-8 assumed --] [-- Attachment #1: Type: text/plain, Size: 10809 bytes --] [This time I'm going to do something new: I'll send a series of messages with individual regression entries CCed to the people involved in handling them in replies to this message. Let's see how this works, fingers crossed. Thx. R.] This message contains a list of some regressions from 2.6.24, for which there are no fixes in the mainline I know of. If any of them have been fixed already, please let me know. If you know of any other unresolved regressions from 2.6.24, please let me know either and I'll add them to the list. Also, please let me know if any of the entries below are invalid. Listed regressions statistics: Date Total Pending Unresolved ---------------------------------------- 2008-04-04 183 32 28 2008-03-31 177 34 31 2008-03-27 171 38 30 2008-03-22 159 35 31 2008-03-17 148 38 30 2008-03-16 146 42 35 2008-03-14 145 45 39 2008-03-12 143 51 41 2008-03-11 141 58 43 2008-03-10 138 66 47 2008-03-03 115 65 49 2008-02-25 90 51 39 2008-02-17 61 45 37 Unresolved regressions ---------------------- Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10391 Subject : 2.6.25-rc7/8: Another resume regression Submitter : Mark Lord <lkml@rtr.ca> Date : 2008-04-03 15:06 (1 days old) References : http://lkml.org/lkml/2008/4/3/283 Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10390 Subject : Oops while reading /proc/ioports or /proc/iomem Submitter : Jan Kara <jack@suse.cz> Date : 2008-04-03 15:25 (1 days old) References : http://lkml.org/lkml/2008/4/3/149 Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10387 Subject : rc6+ regression - backlight reset to 0 on boot after 7c0ea45be4f114d85ee35caeead8e1660699c46f Submitter : Andrey Borzenkov <arvidjaar@mail.ru> Date : 2008-04-02 22:53 (2 days old) References : http://lkml.org/lkml/2008/4/2/366 Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10384 Subject : 2.6.25-rc6-git2: warn_on_slowpath for tcp_simple_retransmit Submitter : Alessandro Suardi <alessandro.suardi@gmail.com> Date : 2008-04-02 00:28 (2 days old) References : http://lkml.org/lkml/2008/4/1/408 Handled-By : Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10382 Subject : 2.6.25-rc5.git4 regression PS/2 mouse not detected/working Submitter : Yanko Kaneti <yaneti@declera.com> Date : 2008-04-02 10:59 (2 days old) References : http://lkml.org/lkml/2008/4/2/210 Handled-By : Dmitry Torokhov <dmitry.torokhov@gmail.com> Balaji Rao <balajirrao@gmail.com> Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10377 Subject : Kernel freezes during boot when AC is unplugged Submitter : Roman Jarosz <kedgedev@centrum.cz> Date : 2008-04-01 16:23 (3 days old) Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10369 Subject : The never ending BEEEEP/__smp_call_function_mask with 2.6.25-rc7 Submitter : Chr <chunkeey@web.de> Date : 2008-03-30 21:09 (5 days old) References : http://lkml.org/lkml/2008/3/30/87 Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10365 Subject : usb-storage, error reading the last 8 sectors, regression in 2.6.25-rc7 Submitter : Sergey Dolgov <solkaa@gmail.com> Date : 2008-03-30 11:49 (5 days old) References : http://lkml.org/lkml/2008/3/30/11 Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10349 Subject : regression: am-utils stopped working in 2.6.25-rc* Submitter : Meelis Roos <mroos@linux.ee> Date : 2008-03-28 15:20 (7 days old) References : http://lkml.org/lkml/2008/3/28/174 Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10346 Subject : Linux 2.6.25-rc6: WARNING: at net/ipv4/tcp_input.c:2510 Submitter : Georgi Chorbadzhiyski <gf@unixsol.org> Date : 2008-03-27 17:29 (8 days old) References : http://lkml.org/lkml/2008/3/27/246 Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10344 Subject : [2.6.25-rc6] possible regression: X server dying Submitter : Tilman Schmidt <tilman@imap.cc> Date : 2008-03-24 23:38 (11 days old) References : http://lkml.org/lkml/2008/3/24/260 Handled-By : Dave Airlie <airlied@gmail.com> Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10324 Subject : kernel panic ip_route_input Submitter : Denys Fedoryshchenko <nuclearcat@nuclearcat.com> Date : 2008-03-25 12:48 (10 days old) Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10323 Subject : panic using bridging on linus kernel 2.6.25-rc6 Submitter : Andy Gospodarek <andy@greyhouse.net> Date : 2008-03-25 11:40 (10 days old) Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10320 Subject : rt2x00 does not associate or give scan results Submitter : Marcus Better <marcus@better.se> Date : 2008-03-25 06:04 (10 days old) Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10319 Subject : 2.6.25-rc6 regression - hang on resume Submitter : Soeren Sonnenburg <kernel@nn7.de> Date : 2008-03-25 04:44 (10 days old) Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10302 Subject : 2.6.25-git regression with snd-hda-intel on Dell XPS M1330, no analog sound Submitter : Andre Tomt <andre@tomt.net> Date : 2008-03-21 20:03 (14 days old) References : http://lkml.org/lkml/2008/3/21/295 Handled-By : Matthew Ranostay <mranostay@embeddedalley.com> Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10300 Subject : volume wheel does not work in 2.6.25-rc6 Submitter : Romano Giannetti <romano.giannetti@gmail.com> Date : 2008-03-21 11:42 (14 days old) Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10290 Subject : [BUG] Linux 2.6.25-rc6 - kernel BUG at fs/mpage.c:476! on powerpc Submitter : Kamalesh Babulal <kamalesh@linux.vnet.ibm.com> Date : 2008-03-20 13:13 (15 days old) References : http://lkml.org/lkml/2008/3/20/39 Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10235 Subject : 2.6.25-rc5: Blank Screen with Intel 945 Submitter : Rafael J. Wysocki <rjw@sisk.pl> Date : 2008-03-12 12:02 (23 days old) References : http://lkml.org/lkml/2008/3/12/290 Handled-By : Jesse Barnes <jbarnes@virtuousgeek.org> Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10172 Subject : kvm: INFO: inconsistent lock state Submitter : Zdenek Kabelac <zdenek.kabelac@gmail.com> Date : 2008-03-05 03:26 (30 days old) Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10156 Subject : KVM & Qemu crashed with infinite recursive kernel loop in the guest Submitter : Zdenek Kabelac <zdenek.kabelac@gmail.com> Date : 2008-02-28 11:25 (36 days old) References : http://lkml.org/lkml/2008/2/28/106 Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10133 Subject : INFO: possible circular locking in the resume Submitter : Zdenek Kabelac <zdenek.kabelac@gmail.com> Date : 2008-02-27 (37 days old) References : http://lkml.org/lkml/2008/2/26/479 Handled-By : Gautham R Shenoy <ego@in.ibm.com> Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10117 Subject : 2.6.25-current-git hangs on boot (pci=nommconf helps) Submitter : Soeren Sonnenburg <kernel@nn7.de> Date : 2008-02-23 18:55 (41 days old) References : http://lkml.org/lkml/2008/2/23/263 Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10093 Subject : 2.6.25-current-git hangs on boot unless CONFIG_CPU_IDLE=n - Apple Submitter : Soeren Sonnenburg <kernel@nn7.de> Date : 2008-02-23 18:55 (41 days old) References : http://lkml.org/lkml/2008/2/23/263 http://marc.info/?l=linux-acpi&m=120387537018467&w=4 Handled-By : Pallipadi, Venkatesh <venkatesh.pallipadi@intel.com> Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10082 Subject : 2.6.25-rc2-git4 - Kernel oops while running kernbench and tbench on powerpc Submitter : Kamalesh Babulal <kamalesh@linux.vnet.ibm.com> Date : 2008-02-20 16:01 (44 days old) References : http://lkml.org/lkml/2008/2/20/218 http://lkml.org/lkml/2008/1/18/71 Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10067 Subject : TUNER_TDA8290=y, VIDEO_DEV=n build error Submitter : Toralf Förster <toralf.foerster@gmx.de> Date : 2008-02-22 10:36 (42 days old) References : http://lkml.org/lkml/2008/2/19/262 Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=9980 Subject : 2.6.25-rc1 on Sun Ultra 40- HPET clocksource which causes it to hang Submitter : Jasper Bryant-Greene <jasper@unix.geek.nz> Date : 2008-02-13 12:25 (51 days old) References : http://lkml.org/lkml/2008/2/13/181 Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=9978 Subject : 2.6.25-rc1: volanoMark regression Submitter : Zhang, Yanmin <yanmin_zhang@linux.intel.com> Date : 2008-02-13 10:30 (51 days old) References : http://lkml.org/lkml/2008/2/13/128 Handled-By : Srivatsa Vaddagiri <vatsa@linux.vnet.ibm.com> Regressionn with patches ------------------------ Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10373 Subject : slub compile error Submitter : Toralf Förster <toralf.foerster@gmx.de> Date : 2008-03-31 14:46 (4 days old) References : http://lkml.org/lkml/2008/3/31/120 Handled-By : Christoph Lameter <clameter@sgi.com> Patch : http://lkml.org/lkml/2008/3/31/261 Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10366 Subject : 2.6.25-rc7: warn_on_slowpath triggered Submitter : Bob Tracy <rct@frus.com> Date : 2008-03-29 17:29 (6 days old) References : http://lkml.org/lkml/2008/3/29/125 Handled-By : Björn Steinbrink <B.Steinbrink@gmx.de> Patch : http://lkml.org/lkml/2008/3/30/245 Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10326 Subject : inconsistent lock state in net_rx_action Submitter : Marcus Better <marcus@better.se> Date : 2008-03-25 13:21 (10 days old) Patch : http://bugzilla.kernel.org/show_bug.cgi?id=10326#c20 Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10153 Subject : (regression) kernel/timeconst.h bugs with HZ=128 Submitter : David Brownell <david-b@pacbell.net> Date : 2008-02-26 19:32 (38 days old) References : http://lkml.org/lkml/2008/2/26/294 Handled-By : H. Peter Anvin <hpa@zytor.com> Patch : http://bugzilla.kernel.org/attachment.cgi?id=15114&action=view http://bugzilla.kernel.org/attachment.cgi?id=15115&action=view For details, please visit the bug entries and follow the links given in references. As you can see, there is a Bugzilla entry for each of the listed regressions. There also is a Bugzilla entry used for tracking the regressions from 2.6.24, unresolved as well as resolved, at: http://bugzilla.kernel.org/show_bug.cgi?id=9832 Please let me know if there are any Bugzilla entries that should be added to the list in there. Thanks, Rafael ^ permalink raw reply [flat|nested] 6+ messages in thread
* 2.6.25-rc6-git2: warn_on_slowpath for tcp_simple_retransmit 2008-04-03 22:49 2.6.25-rc8-git2: Reported regressions from 2.6.24 Rafael J. Wysocki @ 2008-04-03 23:30 ` Rafael J. Wysocki 0 siblings, 0 replies; 6+ messages in thread From: Rafael J. Wysocki @ 2008-04-03 23:30 UTC (permalink / raw) To: Linux Kernel Mailing List; +Cc: Alessandro Suardi, Ilpo Jarvinen The following report is on the current list of known regressions from 2.6.24. Please verify if the issue is still present in the mainline. Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10384 Subject : 2.6.25-rc6-git2: warn_on_slowpath for tcp_simple_retransmit Submitter : Alessandro Suardi <alessandro.suardi@gmail.com> Date : 2008-04-02 00:28 (2 days old) References : http://lkml.org/lkml/2008/4/1/408 Handled-By : Ilpo Jarvinen <ilpo.jarvinen@helsinki.fi> ^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2008-04-04 0:16 UTC | newest] Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2008-04-01 22:28 2.6.25-rc6-git2: warn_on_slowpath for tcp_simple_retransmit Alessandro Suardi 2008-04-02 8:10 ` Ilpo Järvinen 2008-04-02 20:09 ` Alessandro Suardi 2008-04-02 20:39 ` Ilpo Järvinen 2008-04-03 12:52 ` Ilpo Järvinen 2008-04-03 22:49 2.6.25-rc8-git2: Reported regressions from 2.6.24 Rafael J. Wysocki 2008-04-03 23:30 ` 2.6.25-rc6-git2: warn_on_slowpath for tcp_simple_retransmit Rafael J. Wysocki
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