From: Carlos O'Donell <carlos@systemhalted.org>
To: parisc-linux@lists.parisc-linux.org
Subject: [parisc-linux] Why gas kills the hppa-linux kernel and what you can do about it.
Date: Thu, 30 Jun 2005 14:36:03 -0400 [thread overview]
Message-ID: <20050630183559.GK5269@systemhalted.org> (raw)
pa,
Assemble this using a binutils without Alan Modra's pa_block patch:
---
.data
foo:
.block
bar:
.block 0x3fffffff
com:
---
And I get this:
Backtrace:
[<101c10a4>] journal_add_journal_head+0xdc/0x13c
[<101ba51c>] journal_dirty_data+0x64/0x1dc
[<101a7634>] ext3_journal_dirty_data+0x1c/0x60
[<101a73d8>] walk_page_buffers+0xe8/0xf4
[<101a7d5c>] ext3_ordered_writepage+0x168/0x1fc
[<1018c1d8>] mpage_writepages+0x2ac/0x3fc
[<1018a4cc>] __sync_single_inode+0x5c/0x274
[<1018a77c>] __writeback_single_inode+0x98/0x16c
[<1018aa2c>] sync_sb_inodes+0x1dc/0x32c
[<1018ac38>] writeback_inodes+0xbc/0xd8
[<10147b08>] background_writeout+0xc4/0x11c
[<1014884c>] __pdflush+0x134/0x204
[<1014893c>] pdflush+0x20/0x2c
[<1013abd0>] kthread+0xe8/0xf0
[<10109c5c>] ret_from_kernel_thread+0x1c/0x24
Kernel Fault: Code=15 regs=3249c840 (Addr=73c9d7ba)
YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001111 Not tainted
r00-03 00000000 10529010 101c10a4 73c9d7ba
r04-07 2046f930 45a703e8 2046f930 00000000
r08-11 00001000 00000000 00000000 45a703e8
r12-15 101a7bc4 00002000 4fe678dc 101a7bf4
r16-19 00000000 00000000 3249c508 00000002
r20-23 00000000 00000000 73c9d7ba 00000000
r24-27 00000034 00000000 73c9d7ba 1038e010
r28-31 73c9d7ba 00100100 3249c840 112d35d4
sr0-3 00000000 0000016a 00000000 0000016a
sr4-7 00000000 00000000 00000000 00000000
IASQ: 00000000 00000000 IAOQ: 10236f48 10236f4c
IIR: 0ed91200 ISR: 00000000 IOR: 73c9d7ba
CPU: 0 CR30: 3249c000 CR31: 10478000
ORIG_R28: 3249c980
IAOQ[0]: memset+0x24/0xac
IAOQ[1]: memset+0x28/0xac
RP(r2): journal_add_journal_head+0xdc/0x13c
---
The story goes that binutils attempts to allocate a monstrous amount of
memory for that block. Newer binutils complain, Alan added some magic
checks.
The question I have is:
a. Why does the box die? Is this OOM looking for memory?
b. Why doesn't the process just die?
c.
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next reply other threads:[~2005-06-30 18:36 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-06-30 18:36 Carlos O'Donell [this message]
2005-06-30 18:41 ` [parisc-linux] Why gas kills the hppa-linux kernel and what you can do about it Carlos O'Donell
2005-06-30 19:07 ` [parisc-linux] Why gas kills the hppa-linux kernel and what you can John David Anglin
2005-06-30 19:17 ` Carlos O'Donell
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