Re: port-macppc/50338: panic with ping -f and rtk0

[scole_mail <scole_mail%gmx.com@localhost>]

The following reply was made to PR port-macppc/50338; it has been noted by GNATS.

From: scole_mail <scole_mail%gmx.com@localhost>
To: gnats-bugs%NetBSD.org@localhost
Cc: 
Subject: Re: port-macppc/50338: panic with ping -f and rtk0
Date: Wed, 21 Oct 2015 09:29:02 -0400

 So I tried to get a full gdb kernel crash dump or backtrace but wasn't
 able to.  It seems like context switching while under heavy ping load
 is a problem.  I've gotten the panic with cron, sh, and ntp so far.
 Here are some more samples
 
 ###########################################
 [snipped]
 0x0150bad0: at trapstart+0x6b0
 0x0150bba0: at splx+0x68
 0x0150bbb0: at pic_handle_intr+0x224
 0x0150bbf0: at trapstart+0x6b0
 0x0150bcc0: at vn_stat+0x3c
 0x0150bd80: at do_sys_statat+0x90
 0x0150bdf0: at sys___stat50+0x24
 0x0150beb0: at syscall+0x27c
 0x0150bf20: user SC trap #439 by 0xfdcb19d4: srr1=0x2d030
             r1=0xffffd810 cr=0x24888042 xer=0x20000000 ctr=0xfdcb19cc mq=0
 
 ############################
 [snipped]
 0x01508a30: at trapstart+0x6b0
 0x01508b00: at pic_do_pending_int+0x1f8
 0x01508b40: at splx+0x68
 0x01508b50: at pic_handle_intr+0x224
 0x01508b90: at trapstart+0x6b0
 0x01508c60: at pic_do_pending_int+0x1f8
 0x01508ca0: at splx+0x68
 0x01508cb0: at pic_handle_intr+0x224
 0x01508cf0: at trapstart+0x6b0
 0x01508dc0: at pic_do_pending_int+0x1f8
 0x01508e00: at splx+0x68
 0x01508e10: at pic_handle_intr+0x224
 0x01508e50: at trapstart+0x6b0
 0x01508f20: at trapstart+0x6b0
 0xffffdce0: at 0x4bf6f998
 trap: pid 1807.1 (cron): kernel PGM trap @ 0 (SRR1=0x80030)
 trap: pid 1807.1 (cron): kernel PGM trap @ 0x468740 (SRR1=0x80030)
 Skipping crash dump on recursive panic
 panic: trap
 Faulted in DDB; continuing...
 trap: pid 1807.1 (cron): kernel PGM trap @ 0x468740 (SRR1=0x80030)
 Skipping crash dump on recursive panic
 panic: trap
 Faulted in DDB; continuing...
 trap: pid 1807.1 (cron): kernel PGM trap @ 0x468740 (SRR1=0x80030)
 Skipping crash dump on recursive panic
 panic: trap
 Faulted in DDB; continuing...
 trap: pid 1807.1 (cron): kernel PGM trap @ 0x468740 (SRR1=0x80030)
 Skipping crash dump on recursive panic
 panic: trap
 Faulted in DDB; continuing...
 
 ############################
 Stopped in pid 136.1 (sh) at    netbsd:cpu_switchto+0x138:      lwz     r31, 0xc
 (r1)
 Faulted in DDB; continuing...
 trap: kernel ISI by 0x7f8802a4 (SRR1 0x40000030), lr: 0x7f8802a6
 panic: trap
 Faulted in DDB; continuing...
 trap: pid 136.1 (sh): kernel PGM trap @ 0 (SRR1=0x80030)
 Skipping crash dump on recursive panic
 panic: trap
 Faulted in DDB; continuing...
 trap: pid 136.1 (sh): kernel PGM trap @ 0x480000 (SRR1=0x80030)
 Skipping crash dump on recursive panic
 panic: trap
 Faulted in DDB; continuing...
 [snipped]