Bug 146803 - (IT_66003) 32bit gdb doesn't work on x84_64
32bit gdb doesn't work on x84_64
Product: Red Hat Enterprise Linux 4
Classification: Red Hat
Component: kernel (Show other bugs)
x86_64 Linux
medium Severity medium
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Assigned To: Dave Jones
Brian Brock
Depends On:
Blocks: 116894 146087
  Show dependency treegraph
Reported: 2005-02-01 13:18 EST by H.J. Lu
Modified: 2015-01-04 17:16 EST (History)
6 users (show)

See Also:
Fixed In Version:
Doc Type: Bug Fix
Doc Text:
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Clone Of:
Last Closed: 2005-03-23 12:30:20 EST
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Verified Versions:
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oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

Attachments (Terms of Use)
A patch to fix ia32 vDSO on x86_64 (1.96 KB, patch)
2005-02-14 17:23 EST, H.J. Lu
no flags Details | Diff
An updated patch to fix ia32 debug on x86_64 (3.75 KB, patch)
2005-02-14 20:39 EST, H.J. Lu
no flags Details | Diff

  None (edit)
Description H.J. Lu 2005-02-01 13:18:44 EST
I got

# gdb-32 32

Kernel BUG at memory:816
invalid operand: 0000 [1] SMP
Modules linked in: nfsd exportfs nfs lockd md5 ipv6 parport_pc lp
parport autofs4 i2c_dev i2c_core sunrpc ds yenta_socket pcmcia_core
dm_mod button battery ac uhci_hcd ehci_hcd hw_random e1000 floppy ext3
jbd ata_piix libata sd_mod scsi_modPid: 19098, comm: gdb-32 Not
tainted 2.6.9-5.EL.hjl.0.1smp
RIP: 0010:[<ffffffff8016321f>] <ffffffff8016321f>{get_user_pages+354}
RSP: 0018:0000010075f8de78  EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000ff0 RCX: 000ffffffffff000
RDX: 0000010000000000 RSI: 0000010031a93ff0 RDI: ffffffff803c1c60
RBP: 0000000000000000 R08: 0000010031a93ff0 R09: 000000000007e94c
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000010052824940 R14: 0000000000000010 R15: 000001005ce01030
FS:  0000000000000000(0000) GS:ffffffff804bfa00(005b)
CS:  0010 DS: 002b ES: 002b CR0: 000000008005003b
CR2: 000000000819337d CR3: 0000000000101000 CR4: 00000000000006e0
Process gdb-32 (pid: 19098, threadinfo 0000010075f8c000, task
Stack: 0000000000000001 00000000ffffe000 000000015282499c 0000010052824998
       00000000ffffce78 0000010075f8df4c 0000000000000000 0000000000000004
       0000010052824940 ffffffff8013c978
Call Trace:<ffffffff8013c978>{access_process_vm+145}

Code: 0f 0b 73 c7 32 80 ff ff ff ff 30 03 48 83 7c 24 50 00 74 5a
RIP <ffffffff8016321f>{get_user_pages+354} RSP <0000010075f8de78>
Comment 1 H.J. Lu 2005-02-01 14:18:53 EST
FYI, kernel 2.6.11-rc2 is OK.
Comment 2 H.J. Lu 2005-02-14 17:23:16 EST
Created attachment 111069 [details]
A patch to fix ia32 vDSO on x86_64 

I am testing this patch for ia32 vDSO on x86_64.
Comment 3 H.J. Lu 2005-02-14 20:39:52 EST
Created attachment 111074 [details]
An updated patch to fix ia32 debug on x86_64 

It turned out that I missed one patch from Roland. This patch does allow
me to debug ia32 binary on x86_64.
Comment 6 Dave Jones 2005-03-23 12:30:20 EST
this should be fixed in the 5.0.3 errata kernel that came out last month.

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