Date: Fri, 15 May 2015 10:07:56 -0700 From: Sean Bruno <sbruno@ignoranthack.me> To: Ryan Stone <rysto32@gmail.com> Cc: "freebsd-hackers@freebsd.org" <freebsd-hackers@freebsd.org> Subject: Re: How to get anything useful out of kgdb? Message-ID: <555627EC.2020007@ignoranthack.me> In-Reply-To: <CAFMmRNydJdVm%2BDpptQY_LnRvMfUMmoLkLXZFd1zP3OxaMFHgxw@mail.gmail.com> References: <554E41EE.2010202@ignoranthack.me> <2063489.pgabuk9nPJ@ralph.baldwin.cx> <55561803.9050102@ignoranthack.me> <19618854.y3EeXVtCGX@ralph.baldwin.cx> <55561D9A.30309@ignoranthack.me> <CAFMmRNydJdVm%2BDpptQY_LnRvMfUMmoLkLXZFd1zP3OxaMFHgxw@mail.gmail.com>
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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 On 05/15/15 09:45, Ryan Stone wrote: > On Fri, May 15, 2015 at 12:23 PM, Sean Bruno > <sbruno@ignoranthack.me> wrote: > >> 54 Thread 100058 (PID=12: intr/irq262: em1:rx0) cpustop_handler >> () at /home/sbruno/bsd/em_mq/sys/x86/x86/mp_x86.c:987 53 Thread >> 100060 (PID=12: intr/irq263: em1:rx1) cpustop_handler () at >> /home/sbruno/bsd/em_mq/sys/x86/x86/mp_x86.c:987 52 Thread 100062 >> (PID=12: intr/irq264: em1:tx0) cpustop_handler () at >> /home/sbruno/bsd/em_mq/sys/x86/x86/mp_x86.c:987 51 Thread 100064 >> (PID=12: intr/irq265: em1:tx1) cpustop_handler () at >> /home/sbruno/bsd/em_mq/sys/x86/x86/mp_x86.c:987 50 Thread 100066 >> (PID=12: intr/irq266: em1:link) cpustop_handler () at >> /home/sbruno/bsd/em_mq/sys/x86/x86/mp_x86.c:987 >> > > These ones were all running at the time. > Hrm, when I look at them directly in the crashdump, I don't see anything useful. (kgdb) tid 100058 [Switching to thread 54 (Thread 100058)]#0 cpustop_handler () at /home/sbruno/bsd/em_mq/sys/x86/x86/mp_x86.c:987 987 CPU_SET_ATOMIC(cpu, &stopped_cpus); Current language: auto; currently minimal (kgdb) whe #0 cpustop_handler () at /home/sbruno/bsd/em_mq/sys/x86/x86/mp_x86.c:98 7 #1 0xffffffff80f76f7a in ipi_nmi_handler () at /home/sbruno/bsd/em_mq/sys/x86/x86/mp_x86.c:969 #2 0xffffffff80e3657a in trap (frame=0xffffffff817eb910) at /home/sbruno/bsd/em_mq/sys/amd64/amd64/trap.c:188 #3 0xffffffff80e1b273 in nmi_calltrap () at /home/sbruno/bsd/em_mq/sys/amd64/amd64/exception.S:509 #4 0x0000000800841841 in ?? () Previous frame inner to this frame (corrupt stack?) Is "what I want to do" not really possible? sean -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQF8BAEBCgBmBQJVVifqXxSAAAAAAC4AKGlzc3Vlci1mcHJAbm90YXRpb25zLm9w ZW5wZ3AuZmlmdGhob3JzZW1hbi5uZXRCQUFENDYzMkU3MTIxREU4RDIwOTk3REQx MjAxRUZDQTFFNzI3RTY0AAoJEBIB78oecn5kXt8IANIkerdy0eZgjxfCbC+3Re6g 7HxS18p7d+sHzMO9YBtigYqs4apNnPjglCUWlBDQBgpjeyFPvVA20siIGKXSwHqI ogjY/93n3hr9ZAa+nMxNMBDloghUJJrItV42FWHs1x/sFYiCxojp53zmZDe1lmfU 2ZKotyFdo10Kq+1LNN8TLzK1KjBT581R94mTNlozTAJM+hFiBuSB7xv3tvITOUIa QQ8gXmLB70vfWpfHnUsW5xlBhjJaR9oBFM4HvhbWVDtVFXpQQvIUgAYboSRjQZZd 90N8Qo/GygK7XNfiiwykLqhLUlr008xgcEQa7ZIryKP8D2dwwAU9XAqGzbkuGjA= =fGWH -----END PGP SIGNATURE-----
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