On 09/15/16 at 12:35P, Slawa Olhovchenkov wrote:> On Sun, Sep 04, 2016 at 06:46:12PM -0700, hiren panchasara wrote: > > > On 09/05/16 at 12:57P, Slawa Olhovchenkov wrote: > > > I am try using 11.0 on Dual E5-2620 (no X2APIC). > > > Under high network load and may be addtional conditional system go to > > > unresponsible state -- no reaction to network and console (USB IPMI > > > emulation). INVARIANTS give to high overhad. Is this exist some way to > > > debug this? > > > > Can you panic it from console to get to db> to get backtrace and other > > info when it goes unresponsive? > > ipmi console don't respond (chassis power diag don't react) > login on sol console stuck on *tcp.I assume you tried ~^b (tilda followed by ctrl+b) without success? That usually drops into db> I am also fighting an issue where upon said keystrokes, I see "KDB: enter: Break to debugger" but it doesn't drop to db> At that point I have to 'ipmitool blah power reset' the box. Cheers, Hiren -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: application/pgp-signature Size: 603 bytes Desc: not available URL: <http://lists.freebsd.org/pipermail/freebsd-stable/attachments/20160914/ca131e18/attachment.sig>
On Wed, Sep 14, 2016 at 02:43:06PM -0700, hiren panchasara wrote:> On 09/15/16 at 12:35P, Slawa Olhovchenkov wrote: > > On Sun, Sep 04, 2016 at 06:46:12PM -0700, hiren panchasara wrote: > > > > > On 09/05/16 at 12:57P, Slawa Olhovchenkov wrote: > > > > I am try using 11.0 on Dual E5-2620 (no X2APIC). > > > > Under high network load and may be addtional conditional system go to > > > > unresponsible state -- no reaction to network and console (USB IPMI > > > > emulation). INVARIANTS give to high overhad. Is this exist some way to > > > > debug this? > > > > > > Can you panic it from console to get to db> to get backtrace and other > > > info when it goes unresponsive? > > > > ipmi console don't respond (chassis power diag don't react) > > login on sol console stuck on *tcp. > > I assume you tried ~^b (tilda followed by ctrl+b) without success?~B, as in man ipmitool> That usually drops into db>May be now need some sysctl for enable this?> I am also fighting an issue where upon said keystrokes, I see > "KDB: enter: Break to debugger" but it doesn't drop to db> > At that point I have to 'ipmitool blah power reset' the box. > > Cheers, > Hiren