Messages in this thread | | | Date | Fri, 18 Nov 2005 23:37:44 +0100 | From | Jiri Slaby <> | Subject | Re: 2.6.15-rc1-mm2 breaks strace |
| |
Bernhard Rosenkraenzer wrote: >2.6.15-rc1-mm2 works nicely here, aside from the artsd stuff someone else >already reported, and an new issue with strace (last known working: >2.6.14-mm2) I think, that the problem emerged in rc1-mm1, there are some changes in ptrace.c (2.6.14-mm2 works fine for me). > >[bero@localhost bero]$ strace ls >execve("/bin/ls", ["ls"], [/* 33 vars */]) = 0 >Segmentation fault >[ls output without any traces beyond execve-ing ls displayed here] > >Also interesting: >[bero@localhost bero]$ strace strace ls >execve("/usr/bin/strace", ["strace", "ls"], [/* 20 vars */]) = 0 >Segmentation fault >execve("/bin/ls", ["ls"], [/* 20 vars */]) = 0 >[ls output without any traces displayed here]
And I have this in logs:
Unable to handle kernel NULL pointer dereference at virtual address 00000010 printing eip: c0125a25 *pde = 00000000 Oops: 0000 [#1] PREEMPT SMP last sysfs file: /devices/platform/i2c-9191/9191-0290/temp3_input Modules linked in: usblp it87 hwmon_vid i2c_isa sunrpc ipv6 video ohci1394 ieee1394 emu10k1_gp gameport ide_cd cdrom CPU: 0 EIP: 0060:[<c0125a25>] Not tainted VLI EFLAGS: 00210206 (2.6.15-rc1-mm2) EIP is at ptrace_check_attach+0x19/0xb8 eax: 00ffffff ebx: 00000000 ecx: c5ea0b3c edx: c5ea0b38 esi: 00000000 edi: 00000000 ebp: c6106f90 esp: c6106f80 ds: 007b es: 007b ss: 0068 Process strace (pid: 23486, threadinfo=c6106000 task=c17ba550) Stack: c01262dc 00000000 00000000 00000018 c6106fb4 c0126344 00000000 00000000 00000000 c6106fbc 00000018 00000000 5000cff4 c6106000 c0102e15 00000018 00005bbf 00000001 00000000 5000cff4 bf8ced48 ffffffda 0000007b c010007b Call Trace: [<c0103c82>] show_stack+0x9a/0xd0 [<c0103e42>] show_registers+0x16a/0x1fa [<c010407c>] die+0x123/0x1ae [<c03c3b3c>] do_page_fault+0x33c/0x66e [<c010393b>] error_code+0x4f/0x54 [<c0126344>] sys_ptrace+0x5a/0xcf [<c0102e15>] syscall_call+0x7/0xb Code: cc ba 42 c0 c7 43 68 c8 ba 42 c0 89 50 04 89 02 eb a4 55 89 e5 57 56 53 83 ec 04 8b 75 08 8b 7d 0c b8 00 2d 4c c0 e8 16 d5 29 00 <8b> 56 10 f6 c2 01 75 25 bb fd ff ff ff b8 00 2d 4c c0 e8 65 d7 <3>BUG: strace[23486] exited with nonzero preempt_count 1!
regards, -- Jiri Slaby www.fi.muni.cz/~xslaby \_.-^-._ jirislaby@gmail.com _.-^-._/ B67499670407CE62ACC8 22A032CC55C339D47A7E - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |