#2326: BUG: sleeping function called from invalid context at
/local/lindi/scm/neolinux/kernel/rwsem.c:21
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Reporter: lindi | Owner: openmoko-kernel
Type: defect | Status: new
Priority: normal | Milestone:
Component: System Software | Version:
Severity: normal | Keywords:
Haspatch: 0 | Blockedby:
Estimated: | Patchreview:
Blocking: | Reproducible:
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I just noticed this when reading old logs, I do not know how to reproduce
it but I probably used strace with omhacks. Kernel was andy-tracking
a3587e4ed77974ad
{{{
[206244.795000] BUG: sleeping function called from invalid context at
/local/lindi/scm/neolinux/kernel/rwsem.c:21
[206244.795000] in_atomic(): 0, irqs_disabled(): 128, pid: 7341, name: om
[206244.795000] no locks held by om/7341.
[206244.795000] [<c02aa270>] (dump_stack+0x0/0x14) from [<c004ac98>]
(__might_sleep+0x108/0x128)
[206244.795000] [<c004ab90>] (__might_sleep+0x0/0x128) from [<c02ac130>]
(down_read+0x28/0x88)
[206244.795000] r5:c2c36480 r4:00000000
[206244.795000] [<c02ac108>] (down_read+0x0/0x88) from [<c0099170>]
(access_process_vm+0x3c/0x18c)
[206244.795000] r7:c2c367e0 r6:0000961c r5:c2c36480 r4:00000004
[206244.795000] [<c0099134>] (access_process_vm+0x0/0x18c) from
[<c003077c>] (swap_insn+0x30/0x64)
[206244.795000] [<c003074c>] (swap_insn+0x0/0x64) from [<c003087c>]
(ptrace_cancel_bpt+0xcc/0x12c)
[206244.795000] r7:00000001 r6:00000000 r5:c2c36480 r4:0000961c
[206244.795000] [<c00307b0>] (ptrace_cancel_bpt+0x0/0x12c) from
[<c0030cd4>] (ptrace_break+0x1c/0x58)
[206244.795000] [<c0030cb8>] (ptrace_break+0x0/0x58) from [<c0030d30>]
(break_trap+0x20/0x28)
[206244.795000] r5:e7f001f0 r4:c0030d10
[206244.795000] [<c0030d10>] (break_trap+0x0/0x28) from [<c002e150>]
(do_undefinstr+0xe4/0x13c)
[206244.795000] [<c002e06c>] (do_undefinstr+0x0/0x13c) from [<c002ee20>]
(ret_from_exception+0x0/0x10)
[206244.795000] Exception stack(0xc2fd1fb0 to 0xc2fd1ff8)
[206244.795000] 1fa0: 00009988
00000003 bee003b4 0000b644
[206244.795000] 1fc0: 00000000 00000000 00009828 00000000 00000000
00000000 40025000 00000000
[206244.795000] 1fe0: 00009620 bee003a8 00009850 0000961c 60000010
ffffffff
[206244.795000] r8:00000000 r7:00000000 r6:00009828 r5:00000000
r4:0000961c
}}}
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Ticket URL: <https://docs.openmoko.org/trac/ticket/2326>
docs.openmoko.org <http://docs.openmoko.org/trac/>
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