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    SubjectRe: WARNING: at net/ipv4/tcp_input.c:2173 tcp_mark_head_lost+0x173/0x1a0()
    On Thu, Apr 03, 2008 at 09:20:38PM -0700, Andrew Morton wrote:
    > On Thu, 3 Apr 2008 21:19:13 -0700 Andrew Morton <akpm@linux-foundation.org> wrote:
    >
    > >
    > > (cc netdev)
    > >
    > > (and Rafael - I assume 2.6.24 didn't do this..)
    >
    > urgh.
    >
    > > On Wed, 2 Apr 2008 15:41:37 -0700 "Robin H. Johnson" <robbat2@gentoo.org> wrote:
    > >
    > > > (Please CC, not on LKML).
    > > >
    > > > One of the nodes in my web-serving cluster (isohunt.com) started showing this:
    > > >
    > > > ------------[ cut here ]------------
    > > > WARNING: at net/ipv4/tcp_input.c:2173 tcp_mark_head_lost+0x173/0x1a0()
    > > > Modules linked in: lm85 hwmon_vid nfs lockd nfs_acl sunrpc bonding reiserfs k8temp hwmon i2c_nforce2 i2c_core sg
    > > > Pid: 32500, comm: php-cgi Not tainted 2.6.25-rc4-git2 #7
    > I misread that as -rc8.
    > We fixed a lot of stuff since -rc4. Please retest current mainline?

    Hopefully this is new enough. -git3 was released right while I was writing this
    email after testing, and I don't see anything in there that seems related.

    ------------[ cut here ]------------
    WARNING: at net/ipv4/tcp_input.c:1771 tcp_enter_frto+0x2bb/0x2c0()
    Modules linked in: lm85 hwmon_vid nfs lockd nfs_acl sunrpc bonding reiserfs i2c_nforce2 k8temp hwmon i2c_core sg
    Pid: 0, comm: swapper Not tainted 2.6.25-rc8-git2 #1

    Call Trace:
    <IRQ> [<ffffffff8023413f>] warn_on_slowpath+0x5f/0x80
    [<ffffffff803ecefb>] ? e1000_alloc_rx_buffers+0xdb/0x3a0
    [<ffffffff803edcc2>] ? e1000_clean_rx_irq+0x312/0x5a0
    [<ffffffff805a44db>] tcp_enter_frto+0x2bb/0x2c0
    [<ffffffff805aa661>] tcp_write_timer+0x3a1/0x790
    [<ffffffff8024c3e5>] ? hrtimer_run_pending+0x35/0xc0
    [<ffffffff805aa2c0>] ? tcp_write_timer+0x0/0x790
    [<ffffffff8023dd5f>] run_timer_softirq+0x18f/0x1f0
    [<ffffffff80239e74>] __do_softirq+0x74/0xf0
    [<ffffffff8020ee9a>] ? profile_pc+0x3a/0x70
    [<ffffffff8020c7cc>] call_softirq+0x1c/0x30
    [<ffffffff8020ecbd>] do_softirq+0x3d/0x80
    [<ffffffff80239df5>] irq_exit+0x45/0x50
    [<ffffffff8021c62e>] smp_apic_timer_interrupt+0x7e/0xc0
    [<ffffffff8020a480>] ? default_idle+0x0/0x70
    [<ffffffff8020c276>] apic_timer_interrupt+0x66/0x70
    <EOI> [<ffffffff8020a4b9>] ? default_idle+0x39/0x70
    [<ffffffff8020a4b4>] ? default_idle+0x34/0x70
    [<ffffffff8020a480>] ? default_idle+0x0/0x70
    [<ffffffff8020a565>] ? cpu_idle+0x75/0xa0
    [<ffffffff8061deca>] ? rest_init+0x5a/0x60

    ---[ end trace 52f4c6f608900cab ]---
    --
    Robin Hugh Johnson
    Gentoo Linux Developer & Infra Guy
    E-Mail : robbat2@gentoo.org
    GnuPG FP : 11AC BA4F 4778 E3F6 E4ED F38E B27B 944E 3488 4E85
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