PING nobleman.alpha-processor.com (192.233.60.249): 56 data bytes 64 bytes from 192.233.60.249: icmp_seq=0 ttl=128 time=0.4 ms wrong data byte #8 should be 0x8 but was 0xf5 c d e f 10 11 12 13 14 15 16 17 18 19 1a 1b 1c 1d 1e 1f 20 21 22 23 24 2 5 26 27 28 29 2a 2b 2c 2d 2e 2f 0 0 0 0 0 0 0 0 ff ff ff ff
Same things are happening with traceroute.
The problem still exists with 5.9.7.
This smells like a problem with ICMP in the alpha kernel.
I can reproduce the ping (but not the traceroute) problem. I'm going to try the ping from iputils.
*** Bug 2391 has been marked as a duplicate of this bug. *** The summary says it all. Ping gives unaligned trap errors, apparantly under all circumstances.
*** Bug 2562 has been marked as a duplicate of this bug. *** Networking is fine - only ping is complaining.... 64 bytes from 127.0.0.1: icmp_seq=0 ttl=255 time=0.1 ms wrong data byte #8 should be 0x8 but was 0xe9 c d e f 10 11 12 13 14 15 16 17 18 19 1a 1b 1c 1d 1e 1f 20 21 22 23 24 25 26 27 28 29 2a 2b 2c 2d 2e 2f 0 0 0 0 0 0 0 0 0 0 0 0 64 bytes from 127.0.0.1: icmp_seq=1 ttl=255 time=0.0 ms wrong data byte #8 should be 0x8 but was 0x5 c d e f 10 11 12 13 14 15 16 17 18 19 1a 1b 1c 1d 1e 1f 20 21 22 23 24 25 26 27 28 29 2a 2b 2c 2d 2e 2f 0 0 0 0 0 0 0 0 0 0 0 0 ... and doing unaligned memory accesses... ping(8664): unaligned trap at 0000000120002b04: 0000000120117784 29 1 ping(8664): unaligned trap at 0000000120002b2c: 000000012011777c 29 2
*** Bug 2563 has been marked as a duplicate of this bug. *** Networking is fine - only ping is complaining.... 64 bytes from 127.0.0.1: icmp_seq=0 ttl=255 time=0.1 ms wrong data byte #8 should be 0x8 but was 0xe9 c d e f 10 11 12 13 14 15 16 17 18 19 1a 1b 1c 1d 1e 1f 20 21 22 23 24 25 26 27 28 29 2a 2b 2c 2d 2e 2f 0 0 0 0 0 0 0 0 0 0 0 0 64 bytes from 127.0.0.1: icmp_seq=1 ttl=255 time=0.0 ms wrong data byte #8 should be 0x8 but was 0x5 c d e f 10 11 12 13 14 15 16 17 18 19 1a 1b 1c 1d 1e 1f 20 21 22 23 24 25 26 27 28 29 2a 2b 2c 2d 2e 2f 0 0 0 0 0 0 0 0 0 0 0 0 ... and doing unaligned memory accesses... ping(8664): unaligned trap at 0000000120002b04: 0000000120117784 29 1 ping(8664): unaligned trap at 0000000120002b2c: 000000012011777c 29 2
*** Bug 2638 has been marked as a duplicate of this bug. *** Every successful ping is returning the following errors: PING www.yahoo.com (204.71.200.68): 56 data bytes 64 bytes from 204.71.200.68: icmp_seq=0 ttl=250 time=26.0 ms wrong data byte #8 should be 0x8 but was 0x10 c d e f 10 11 12 13 14 15 16 17 18 19 1a 1b 1c 1d 1e 1f 20 21 22 23 24 2 5 26 27 28 29 2a 2b 2c 2d 2e 2f 0 0 0 0 0 0 0 0 0 0 0 0 64 bytes from 204.71.200.68: icmp_seq=1 ttl=250 time=23.4 ms wrong data byte #8 should be 0x8 but was 0xe4 c d e f 10 11 12 13 14 15 16 17 18 19 1a 1b 1c 1d 1e 1f 20 21 22 23 24 2 5 26 27 28 29 2a 2b 2c 2d 2e 2f 0 0 0 0 0 0 0 0 0 0 0 0 64 bytes from 204.71.200.68: icmp_seq=2 ttl=250 time=25.2 ms wrong data byte #8 should be 0x8 but was 0xcb c d e f 10 11 12 13 14 15 16 17 18 19 1a 1b 1c 1d 1e 1f 20 21 22 23 24 2 5 26 27 28 29 2a 2b 2c 2d 2e 2f 0 0 0 0 0 0 0 0 0 0 0 0
Fixed (ping anyways) in netkit-base-0.10-31. Please reopen if traceroute needs attention.
*** Bug 2391 has been marked as a duplicate of this bug. *** The summary says it all. Ping gives unaligned trap errors, apparantly under all circumstances. ------- Additional Comments From jbj 04/28/99 10:42 ------- *** This bug has been marked as a duplicate of 1786 ***
*** Bug 3173 has been marked as a duplicate of this bug. *** 1. Broken ping: see comp.os.linux.alpha - 8 bit error 2. Ethernet does not work - works fine with redhat 5.2! 1. Subject: PATCH: broken ping on RH 6.0 Date: Fri, 14 May 1999 17:41:46 +0200 From: Alex Rhomberg <rhomberg.ethz.ch> Organization: Electronics Lab, ETH Zurich, Switzerland Newsgroups: comp.os.linux.alpha ping in netkit 0.11+ assumes that timeval has a length of eight bytes and works with 32 bit alignment. This is no longer the case on my Alphas running Linux 2.2.5 and Redhat 6.0 (might be due to glibc 2.1??) Ping generated unaligned traps and erroneously reported receiving of wrong data. This is fixed by the following patch. Note that I did not read the whole code but just made some wild guesses. The unaligned traps and the wrong data errors are gone. Regards - Alex --- ping.unpatched.c Fri May 14 17:30:50 1999 +++ ping.c Fri May 14 17:31:06 1999 @@ -394,7 +394,7 @@ exit(2); } if (!(options & F_PINGFILLED)) - for (i = 8; i < datalen; ++i) + for (i = sizeof(struct timeval); i < datalen; ++i) *datap++ = i; ident = getpid() & 0xFFFF; @@ -657,11 +657,18 @@ return; /* 'Twas not our ECHO */ ++nreceived; if (timing) { + struct timeval temp_tv; #ifndef icmp_data tp = (struct timeval *)(icp + 1); #else tp = (struct timeval *)icp->icmp_data; #endif + if((long)tp % sizeof(tp->tv_sec)) + { + char *unaligned_pointer = (char *)tp; + tp = &temp_tv; + memcpy(tp, unaligned_pointer, sizeof(struct timeval)); + } tvsub(&tv, tp); triptime = tv.tv_sec * 10000 + (tv.tv_usec / 100); tsum += triptime; @@ -697,9 +704,9 @@ (void)printf(" (DUP!)"); /* check the data */ #ifndef icmp_data - cp = ((u_char*)(icp + 1) + 8); + cp = ((u_char*)(icp + 1) + sizeof(struct timeval)); #else - cp = (u_char*)icp->icmp_data + 8; + cp = (u_char*)icp->icmp_data + sizeof(struct timeval); #endif dp = &outpack[8 + sizeof(struct timeval)]; for (i = 8; i < datalen; ++i, ++cp, ++dp) { -- ____________________________________________________________ _____ / \ | Alex Rhomberg Tel: +41 1 632 49 18 | | Institut fuer Elektronik Fax: +41 1 632 12 10 | | ETH Zuerich Zentrale: +41 1 632 11 11 | | Gloriastrasse 35 | | 8092 Zuerich ema1) The broken ping on alpha has been fixed. 2) Dunno about "Ethernet does not work" -- more information is needed.il: rhomberg.ethz.ch | \___________________________________________________________ ______/