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[Bug runtime/21726] on rawhide, the backtrace.exp test case causes a kernel panic
- From: "mark at klomp dot org" <sourceware-bugzilla at sourceware dot org>
- To: systemtap at sourceware dot org
- Date: Thu, 06 Jul 2017 20:30:15 +0000
- Subject: [Bug runtime/21726] on rawhide, the backtrace.exp test case causes a kernel panic
- Auto-submitted: auto-generated
- References: <bug-21726-6586@http.sourceware.org/bugzilla/>
https://sourceware.org/bugzilla/show_bug.cgi?id=21726
--- Comment #2 from Mark Wielaard <mark at klomp dot org> ---
Disassembly was of the wrong part. It should be around:
[ 318.821928] RIP: 0010:_stp_stack_kernel_get+0x550/0x680 [stap_1014]
364 return 0; /* unwind does not reach this far */
0x0000000000004a8c <+508>: xor %r15d,%r15d
0x0000000000004a8f <+511>: jmp 0x4a33 <_stp_stack_kernel_get+419>
353 printk(KERN_ERR "%s:%d depth >= MAXBACKTRACE, returning
0\n", __FUNCTION__, __LINE__);
0x0000000000004a91 <+513>: mov $0x161,%edx
0x0000000000004a96 <+518>: mov $0x0,%rsi
0x0000000000004a9d <+525>: mov $0x0,%rdi
0x0000000000004aa4 <+532>: callq 0x4aa9 <_stp_stack_kernel_get+537>
354 return 0;
0x0000000000004aa9 <+537>: xor %r15d,%r15d
0x0000000000004aac <+540>: jmp 0x4a33 <_stp_stack_kernel_get+419>
307 regs = c->kregs;
0x0000000000004aae <+542>: mov 0x238(%rbx),%rax
310
311 dbug_unwind(1, "CONTINUING kernel unwind to depth %d\n",
depth);
0x0000000000004ab5 <+549>: mov $0x137,%edx
0x0000000000004aba <+554>: mov $0x0,%rsi
0x0000000000004ac1 <+561>: mov $0x0,%rdi
0x0000000000004ac8 <+568>: mov %r11,-0x50(%rbp)
307 regs = c->kregs;
0x0000000000004acc <+572>: mov %rax,-0x48(%rbp)
308
309 info = &c->uwcontext_kernel.info;
0x0000000000004ad0 <+576>: lea 0xa40(%rbx),%rax
0x0000000000004ad7 <+583>: mov %rax,-0x58(%rbp)
310
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